fix: combining splunk versions for python3.9 matrix issues (#257)

## Summary 
- Update reusable workflow according to updated handling of python 3.9
tests

### Issue ticket number and link :- [Jira
Ticket](https://splunk.atlassian.net/browse/ADDON-69651)
- Job in AWS addon where all the relevent test is running successfully
with python3.9:
[Job](https://github.com/splunk/splunk-add-on-for-amazon-web-services/actions/runs/8687485637/job/23821632227)

- Addon Job for MSCS :-
[Job](https://github.com/splunk/splunk-add-on-for-microsoft-cloud-services/actions/runs/8683988655)


### Description 
- Updated workflow so that steps combined_Splunkmatrix and
python39_splunk in job meta are merged into single step.
- Updated workflow so these tests are being executed the same way for
all the other test types

---------

Co-authored-by: mkolasinski-splunk <mkolasinski@splunk.com>

Author: pbajaj-crest

.github/workflows/reusable-build-test-release.yml

@@ -249,14 +249,11 @@ jobs:
       container_version: ${{ fromJSON(steps.docker_action_meta.outputs.json).labels['org.opencontainers.image.version'] }}
       container_revision: ${{ fromJSON(steps.docker_action_meta.outputs.json).labels['org.opencontainers.image.revision'] }}
       container_base: ${{ fromJSON(steps.docker_action_meta.outputs.json).tags[0] }}
-      matrix_supportedSplunk: ${{ steps.matrix.outputs.supportedSplunk }}
       matrix_latestSplunk: ${{ steps.matrix.outputs.latestSplunk }}
-      matrix_combinedSplunkversion: ${{ steps.combined_Splunkmatrix.outputs.combinedSplunkversions }}
       matrix_supportedSC4S: ${{ steps.matrix.outputs.supportedSC4S }}
+      matrix_combinedSplunkversion: ${{ steps.combined_Splunkmatrix.outputs.combinedSplunkversions }}
       matrix_supportedModinputFunctionalVendors: ${{ steps.matrix.outputs.supportedModinputFunctionalVendors }}
       matrix_supportedUIVendors: ${{ steps.matrix.outputs.supportedUIVendors }}
-      python39_splunk: ${{steps.python39_splunk.outputs.splunk}}
-      python39_sc4s: ${{steps.python39_splunk.outputs.sc4s}}
     permissions:
       contents: write
       packages: read
@@ -293,17 +290,13 @@ jobs:
       - name: matrix
         id: matrix
         uses: splunk/addonfactory-test-matrix-action@v1.13
-      - name: python39_Splunk
-        id: python39_splunk
-        run: |
-          echo "splunk={\"version\":\"unreleased-python3_9-7027496d63d8\", \"build\":\"7027496d63d8\", \"islatest\":false, \"isoldest\":false}" >> "$GITHUB_OUTPUT"
-          echo "sc4s={\"version\":\"2.49.5\", \"docker_registry\":\"ghcr.io/splunk/splunk-connect-for-syslog/container2\"}"  >> "$GITHUB_OUTPUT"
-      - name: combined_Splunkmatrix
+
+      - name: Combined Splunk and SC4S Versions
         id: combined_Splunkmatrix
         run: |
-            combinedSplunkversions=$(echo '${{ steps.matrix.outputs.supportedSplunk }}'  | jq --argjson A '${{steps.python39_splunk.outputs.splunk}}' '. + [$A]')
-            echo "combinedSplunkversions=$(echo "$combinedSplunkversions"| jq -c .)" >> "$GITHUB_OUTPUT"
-
+          splunk='{"version":"unreleased-python3_9-7027496d63d8", "build":"7027496d63d8", "islatest":false, "isoldest":false}'
+          combinedSplunkversions=$(echo '${{ steps.matrix.outputs.supportedSplunk }}' | jq --argjson A "$splunk" '. + [$A]')
+          echo "combinedSplunkversions=$(echo "$combinedSplunkversions" | jq -c .)" >> "$GITHUB_OUTPUT"
 
   fossa-scan:
     runs-on: ubuntu-latest
@@ -1028,17 +1021,12 @@ jobs:
       - meta
       - setup-workflow
     runs-on: ubuntu-latest
-    continue-on-error: ${{ matrix.python39 }}
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
         sc4s: ${{ fromJson(needs.meta.outputs.matrix_supportedSC4S) }}
-        python39: [false]
-        include:
-            - splunk: ${{ fromJson(needs.meta.outputs.python39_splunk) }}
-              sc4s: ${{ fromJson(needs.meta.outputs.python39_sc4s) }}
-              python39: true
+
     container:
       image: ghcr.io/splunk/workflow-engine-base:2.0.12
     env:
@@ -1277,17 +1265,12 @@ jobs:
       - meta
       - setup-workflow
     runs-on: ubuntu-latest
-    continue-on-error: ${{ matrix.python39 }}
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_latestSplunk) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
         sc4s: ${{ fromJson(needs.meta.outputs.matrix_supportedSC4S) }}
-        python39: [false]
-        include:
-            - splunk: ${{ fromJson(needs.meta.outputs.python39_splunk) }}
-              sc4s: ${{ fromJson(needs.meta.outputs.python39_sc4s) }}
-              python39: true
+
     container:
       image: ghcr.io/splunk/workflow-engine-base:2.0.12
     env:
@@ -1504,18 +1487,13 @@ jobs:
       - meta
       - setup-workflow
     runs-on: ubuntu-latest
-    continue-on-error: ${{ matrix.python39 }}
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
         browser: [ "chrome" ]
         vendor-version: ${{ fromJson(needs.meta.outputs.matrix_supportedUIVendors) }}
-        python39: [false]
-        include:
-            - splunk: ${{ fromJson(needs.meta.outputs.python39_splunk) }}
-              browser: "chrome"
-              python39: true
+
     container:
       image: ghcr.io/splunk/workflow-engine-base:2.0.12
     env:
@@ -1527,7 +1505,7 @@ jobs:
       SPLUNK_VERSION_BASE: ${{ matrix.splunk.version }}${{ secrets.OTHER_TA_REQUIRED_CONFIGS }}
       TEST_TYPE: "ui"
       TEST_ARGS: "--browser ${{ matrix.browser }}"
-    permissions: 
+    permissions:
       actions: read
       deployments: read
       contents: read
@@ -1548,7 +1526,7 @@ jobs:
       - name: capture start time
         id: capture-start-time
         run: |
-          echo "start_time=$(date +%s)" >> "$GITHUB_OUTPUT"  
+          echo "start_time=$(date +%s)" >> "$GITHUB_OUTPUT"
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v3
         with:
@@ -1573,7 +1551,7 @@ jobs:
       - name: Splunk instance details
         id: splunk-instance-details
         if: ${{ needs.setup-workflow.outputs.delay-destroy-ui == 'Yes' }}
-        shell: bash 
+        shell: bash
         run: |
           BOLD="\033[1m"
           NORMAL="\033[0m"
@@ -1981,17 +1959,11 @@ jobs:
       - meta
       - setup-workflow
     runs-on: ubuntu-latest
-    continue-on-error: ${{ matrix.python39 }}
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
         os: [ "ubuntu:14.04", "ubuntu:16.04","ubuntu:18.04","ubuntu:22.04", "centos:7", "redhat:8.0", "redhat:8.2", "redhat:8.3", "redhat:8.4", "redhat:8.5" ]
-        python39: [false]
-        include:
-            - splunk: ${{ fromJson(needs.meta.outputs.python39_splunk) }}
-              os: "ubuntu:22.04"
-              python39: true
     container:
       image: ghcr.io/splunk/workflow-engine-base:2.0.12
     env:
@@ -2226,7 +2198,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
         os: [ "ubuntu:22.04", "centos:7","redhat:8.5" ]
     container:
       image: ghcr.io/splunk/workflow-engine-base:2.0.12