FIX (DevOps) @W-15619625@: Workflow jobs properly sequenced.

Author: jfeingold35

.github/workflows/create-release-branch.yml

@@ -128,6 +128,7 @@ jobs:
   # Build the scanner tarball so it can be installed locally when we run tests.
   build-scanner-tarball:
     name: 'Build scanner tarball'
+    needs: verify-should-run
     uses: ./.github/workflows/build-scanner-tarball.yml
     with:
       # Note: Using `dev` here is technically incorrect. For full completeness's sake, we should probably be
@@ -138,9 +139,10 @@ jobs:
   # Run all the various tests against the newly created branch.
   test-release-branch:
     name: 'Run unit tests'
-    needs: build-scanner-tarball
+    needs: [build-scanner-tarball, create-release-branch]
     uses: ./.github/workflows/run-tests.yml
     with:
       # We want to validate the extension against whatever version of the scanner we *plan* to publish,
       # not what's *already* published.
       use-scanner-tarball: true
+      target-branch: ${{ needs.create-release-branch.outputs.branch-name }}

.github/workflows/run-tests.yml

@@ -7,6 +7,11 @@ on:
         required: false
         type: boolean
         default: false
+      target-branch:
+        description: "What branch should be checked out?"
+        required: falsetype: string
+        # If no target branch is specified, just use the one we'd use normally.
+        default: ${{ github.sha }}
 
 jobs:
   build-and-run:
@@ -17,6 +22,8 @@ jobs:
     steps:
       - name: 'Check out the code'
         uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.target-branch }}
       - name: 'Set up NodeJS'
         uses: actions/setup-node@v4
         with: