fix: rename summary job to prevent duplicate heading in GitHub Actions UI

- Rename job from 'summary' to 'results-summary' to avoid conflict
- Simplify step name from 'Test Summary' to 'Summary'
- Fixes duplicate 'summary summary' display in GitHub Actions summary section

Author: moizpgedge

.github/workflows/test_images.yaml

@@ -120,12 +120,12 @@ jobs:
           IMAGE="${{ env.IMAGE_REGISTRY }}/${{ inputs.package_repository }}:${{ matrix.tag }}"
           make test-image IMAGE="$IMAGE" FLAVOR="${{ matrix.flavor }}"
 
-  summary:
+  results-summary:
     needs: [setup, test]
     runs-on: ubuntu-latest
     if: always()
     steps:
-      - name: Test Summary
+      - name: Summary
         run: |
           echo "| Input | Value |" >> $GITHUB_STEP_SUMMARY
           echo "|-------|-------|" >> $GITHUB_STEP_SUMMARY