only commit performance test if on main branch

Author: Clare72

.github/workflows/performance-test.yml

@@ -226,16 +226,10 @@ jobs:
           cat performance.md >> $GITHUB_STEP_SUMMARY
           
       - name: Commit and Push Performance Report
-        if: always()
+        if: always() && github.ref == 'refs/heads/main'
         run: |
           git config --local user.email "action@github.com"
           git config --local user.name "GitHub Action"
-          BRANCH="${{ github.head_ref || github.ref_name }}"
-          # Fetch latest branch, reset to it, then apply only performance.md
-          cp performance.md /tmp/performance.md
-          git fetch origin "$BRANCH"
-          git reset --hard "origin/$BRANCH"
-          cp /tmp/performance.md performance.md
           git add performance.md
           git diff --staged --quiet || git commit -m "Update performance test results [skip ci]"
-          git push origin HEAD:"$BRANCH" || echo "Push failed — performance report not updated"
+          git push origin HEAD:main