fix(github): Use build git rev for testing

While the actions are working as expected in main branch
I noticed that for other branches:
In test workflow the checkout action is not using the same rev as in the build workflow.
IHMO this is an odd default beaviour...

Origin: SiliconLabsSoftware#91
Relate-to: https://github.com/orgs/community/discussions/157893
Relate-to: SiliconLabsSoftware/z-wave-engine-application-layer#22
Signed-off-by: Philippe Coval <philippe.coval@silabs.com>

Author: rzr

.github/workflows/test.yml

@@ -4,6 +4,7 @@
 ---
 
 name: test
+run-name: "test: ${{ github.event.workflow_run.head_branch }}#${{ github.event.workflow_run.head_commit.id }}"
 
 on:  # yamllint disable-line rule:truthy
   workflow_run:
@@ -28,6 +29,7 @@ jobs:
       - uses: actions/checkout@v4.1.1
         with:
           fetch-depth: 0
+          ref: ${{ github.event.workflow_run.head_commit.id }}
 
       - name: Download embedded applications package
         uses: robinraju/release-downloader@v1.12