Only benchmakr step need write permissions to PR.

Author: cedric-appdirect

.github/workflows/bench.yml

@@ -8,9 +8,6 @@ concurrency:
 on:
     pull_request:
 
-permissions:
-    pull-requests: write
-
 jobs:
     benchmark-pr:
         runs-on: ubuntu-latest
@@ -54,6 +51,8 @@ jobs:
     benchmark:
         runs-on: ubuntu-latest
         needs: [benchmark-pr, benchmark-master]
+        permissions:
+            pull-requests: write        
         steps:
           - name: Setup go
             uses: actions/setup-go@v5