chore: update matrix-example.yml (#2752)

Author: jackton1

.github/workflows/matrix-example.yml

@@ -43,3 +43,15 @@ jobs:
       - name: Test
         run: |
           echo ${{ matrix.files }}
+
+  conditional-job:
+    name: Run Conditional Job
+    runs-on: ubuntu-latest
+    needs: [changed-files]
+    if: contains(needs.changed-files.outputs.matrix, 'README.md') # Conditional check for README
+    steps:
+      - name: Checkout
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+      - name: Execute Conditional Logic
+        run: |
+          echo "README.md has been changed. Running conditional job."