Fix matrix exclude in integration-tests workflow

Apply same dynamic matrix approach to integration-tests.yml that was
used in examples.yml. This fixes the matrix exclude errors for both
build-dummy-app-webpack-test-bundles and dummy-app-integration-tests jobs.

Changes:
- Add setup-integration-matrix job to generate dynamic matrices
- Update both jobs to use fromJson() with the dynamic matrix
- Remove broken exclude rules with empty string workarounds

Behavior:
- On PRs: runs 1 job (Ruby 3.4 + Node 22 + latest) for fast feedback
- On master/workflow_dispatch/force_run/full-ci: runs 2 jobs for full coverage

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

.github/workflows/integration-tests.yml

@@ -58,27 +58,33 @@ jobs:
           fi
         shell: bash
 
-  build-dummy-app-webpack-test-bundles:
+  setup-integration-matrix:
     needs: detect-changes
+    runs-on: ubuntu-22.04
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - id: set-matrix
+        run: |
+          # Determine if we should run full matrix (master, workflow_dispatch, force_run, or full-ci label)
+          if [[ "${{ github.ref }}" == "refs/heads/master" ]] || \
+             [[ "${{ github.event_name }}" == "workflow_dispatch" ]] || \
+             [[ "${{ inputs.force_run }}" == "true" ]] || \
+             [[ "${{ needs.detect-changes.outputs.has_full_ci_label }}" == "true" ]]; then
+            # Full matrix: test both latest and minimum supported versions
+            echo 'matrix={"include":[{"ruby-version":"3.4","node-version":"22","dependency-level":"latest"},{"ruby-version":"3.2","node-version":"20","dependency-level":"minimum"}]}' >> $GITHUB_OUTPUT
+          else
+            # PR matrix: test only latest versions for fast feedback
+            echo 'matrix={"include":[{"ruby-version":"3.4","node-version":"22","dependency-level":"latest"}]}' >> $GITHUB_OUTPUT
+          fi
+
+  build-dummy-app-webpack-test-bundles:
+    needs: [detect-changes, setup-integration-matrix]
     # Run on master, workflow_dispatch, OR when tests needed on PR
     if: |
       github.ref == 'refs/heads/master' || github.event_name == 'workflow_dispatch' || needs.detect-changes.outputs.run_dummy_tests == 'true'
     strategy:
-      matrix:
-        include:
-          # Always run: Latest versions (fast feedback on PRs)
-          - ruby-version: '3.4'
-            node-version: '22'
-            dependency-level: 'latest'
-          # Master and workflow_dispatch: Minimum supported versions (full coverage)
-          - ruby-version: '3.2'
-            node-version: '20'
-            dependency-level: 'minimum'
-        exclude:
-          # Skip minimum dependency matrix on regular PRs (run only on master/workflow_dispatch/force_run/full-ci label)
-          - ruby-version: ${{ github.event_name == 'pull_request' && github.ref != 'refs/heads/master' && inputs.force_run != true && needs.detect-changes.outputs.has_full_ci_label != 'true' && '3.2' || '' }}
-            node-version: ${{ github.event_name == 'pull_request' && github.ref != 'refs/heads/master' && inputs.force_run != true && needs.detect-changes.outputs.has_full_ci_label != 'true' && '20' || '' }}
-            dependency-level: ${{ github.event_name == 'pull_request' && github.ref != 'refs/heads/master' && inputs.force_run != true && needs.detect-changes.outputs.has_full_ci_label != 'true' && 'minimum' || '' }}
+      matrix: ${{ fromJson(needs.setup-integration-matrix.outputs.matrix) }}
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
@@ -148,26 +154,12 @@ jobs:
           key: dummy-app-webpack-bundle-${{ steps.get-sha.outputs.sha }}-ruby${{ matrix.ruby-version }}-${{ matrix.dependency-level }}
 
   dummy-app-integration-tests:
-    needs: [detect-changes, build-dummy-app-webpack-test-bundles]
+    needs: [detect-changes, setup-integration-matrix, build-dummy-app-webpack-test-bundles]
     # Run on master, workflow_dispatch, OR when tests needed on PR
     if: |
       github.ref == 'refs/heads/master' || github.event_name == 'workflow_dispatch' || needs.detect-changes.outputs.run_dummy_tests == 'true'
     strategy:
-      matrix:
-        include:
-          # Always run: Latest versions (fast feedback on PRs)
-          - ruby-version: '3.4'
-            node-version: '22'
-            dependency-level: 'latest'
-          # Master and workflow_dispatch: Minimum supported versions (full coverage)
-          - ruby-version: '3.2'
-            node-version: '20'
-            dependency-level: 'minimum'
-        exclude:
-          # Skip minimum dependency matrix on regular PRs (run only on master/workflow_dispatch/force_run/full-ci label)
-          - ruby-version: ${{ github.event_name == 'pull_request' && github.ref != 'refs/heads/master' && inputs.force_run != true && needs.detect-changes.outputs.has_full_ci_label != 'true' && '3.2' || '' }}
-            node-version: ${{ github.event_name == 'pull_request' && github.ref != 'refs/heads/master' && inputs.force_run != true && needs.detect-changes.outputs.has_full_ci_label != 'true' && '20' || '' }}
-            dependency-level: ${{ github.event_name == 'pull_request' && github.ref != 'refs/heads/master' && inputs.force_run != true && needs.detect-changes.outputs.has_full_ci_label != 'true' && 'minimum' || '' }}
+      matrix: ${{ fromJson(needs.setup-integration-matrix.outputs.matrix) }}
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4