Only run Scorecard in envoy repository (#41825)

Signed-off-by: Jonh Wendell <[email protected]>

Author: jwendell

.github/workflows/scorecard.yml

@@ -15,6 +15,7 @@ jobs:
   analysis:
     name: Scorecard analysis
     runs-on: ubuntu-24.04
+    if: github.repository == 'envoyproxy/envoy'
     permissions:
       security-events: write
       id-token: write