[skip ci] Also skip benchmarking on non php-src

Author: iluuu1994

.github/workflows/push.yml

@@ -218,7 +218,7 @@ jobs:
         run: .github/scripts/windows/test.bat
   BENCHMARKING:
     name: BENCHMARKING
-    if: github.repository_owner == 'php' || github.event_name == 'pull_request'
+    if: github.repository == 'php/php-src' || github.event_name == 'pull_request'
     runs-on: ubuntu-22.04
     steps:
       - name: git checkout