fix: update matrix action remove unreleased splunk (#306)

This PR updates matrix-action and sets version to minor so any patch
updates on matrix-action repo are consumed automatically.
With new matrix-action Splunk 9.3.0 is shipped which by default uses
python 3.9:
https://docs.splunk.com/Documentation/Splunk/9.3.0/ReleaseNotes/MeetSplunk
Hence code related with unreleased-python-3_9 Splunk is removed.

tests:

https://github.com/splunk/splunk-add-on-for-google-cloud-platform/actions/runs/10194294389

https://github.com/splunk/splunk-add-on-for-mysql/actions/runs/10194312540

https://github.com/splunk/splunk-add-on-for-servicenow/actions/runs/10194305287

JBoss: splunk/splunk-add-on-for-jboss#444
Unix:
splunk/splunk-add-on-for-unix-and-linux#579

Author: mkolasinski-splunk

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

@@ -176,9 +176,9 @@ jobs:
   meta:
     runs-on: ubuntu-latest
     outputs:
+      matrix_supportedSplunk: ${{ steps.matrix.outputs.supportedSplunk }}
       matrix_latestSplunk: ${{ steps.matrix.outputs.latestSplunk }}
       matrix_supportedSC4S: ${{ steps.matrix.outputs.supportedSC4S }}
-      matrix_combinedSplunkversion: ${{ steps.combined_Splunkmatrix.outputs.combinedSplunkversions }}
       matrix_supportedModinputFunctionalVendors: ${{ steps.matrix.outputs.supportedModinputFunctionalVendors }}
       matrix_supportedUIVendors: ${{ steps.matrix.outputs.supportedUIVendors }}
     permissions:
@@ -190,13 +190,7 @@ jobs:
           submodules: false
           persist-credentials: false
       - id: matrix
-        uses: splunk/addonfactory-test-matrix-action@v2.0.2
-      - name: Combined Splunk and SC4S Versions
-        id: combined_Splunkmatrix
-        run: |
-          splunk='{"version":"unreleased-python3_9-f8b1a92a256b", "build":"7027496d63d8", "islatest":false, "isoldest":false}'
-          combinedSplunkversions=$(echo '${{ steps.matrix.outputs.supportedSplunk }}' | jq --argjson A "$splunk" '. + [$A]')
-          echo "combinedSplunkversions=$(echo "$combinedSplunkversions" | jq -c .)" >> "$GITHUB_OUTPUT"
+        uses: splunk/addonfactory-test-matrix-action@v2.1
 
   fossa-scan:
     runs-on: ubuntu-latest
@@ -922,7 +916,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
         sc4s: ${{ fromJson(needs.meta.outputs.matrix_supportedSC4S) }}
 
     container:
@@ -1155,7 +1149,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
         sc4s: ${{ fromJson(needs.meta.outputs.matrix_supportedSC4S) }}
 
     container:
@@ -1366,7 +1360,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
         browser: [ "chrome" ]
         vendor-version: ${{ fromJson(needs.meta.outputs.matrix_supportedUIVendors) }}
         marker: ${{ fromJson(inputs.ui_marker) }}
@@ -1599,7 +1593,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
         modinput-type: [ "modinput_functional" ]
         vendor-version: ${{ fromJson(needs.meta.outputs.matrix_supportedModinputFunctionalVendors) }}
         marker: ${{ fromJson(inputs.marker) }}
@@ -1830,7 +1824,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        splunk: ${{ fromJson(needs.meta.outputs.matrix_combinedSplunkversion) }}
+        splunk: ${{ fromJson(needs.meta.outputs.matrix_supportedSplunk) }}
         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" ]
     container:
       image: ghcr.io/splunk/workflow-engine-base:4.1.0