[CI] Run tests when CI is manually triggered (#5216)

Currently you can manually call a workflow dispatch, but it won't
actually run the tests because the variable enable_integration isn't
set.

Author: peterbell10

.github/workflows/integration-tests.yml

@@ -41,6 +41,11 @@ jobs:
         if: github.event_name == 'pull_request'
         run: |
           echo "enable_integration=true" >> $GITHUB_ENV
+      - name: Decide manual trigger integration test enablement
+        # Always enable integration tests when manually triggered
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          echo "enable_integration=true" >> $GITHUB_ENV
       - name: Checkout post-submit commits
         if: github.event_name == 'push'
         uses: actions/checkout@v4

.github/workflows/integration-tests.yml.in

@@ -45,6 +45,12 @@ jobs:
         run: |
           echo "enable_integration=true" >> $GITHUB_ENV
 
+      - name: Decide manual trigger integration test enablement
+        # Always enable integration tests when manually triggered
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          echo "enable_integration=true" >> $GITHUB_ENV
+
       - name: Checkout post-submit commits
         if: github.event_name == 'push'
         uses: actions/checkout@v4