update branch in release gh action

Author: fabienheureux

.github/workflows/release.yml

@@ -5,17 +5,13 @@ on:
   push:
     branches: [ "main" ]
 
-  pull_request:
-    types: [opened, reopened, synchronize]
-
 permissions:
   contents: read
 
 jobs:
   update_release_draft:
     permissions:
       contents: write
-      pull-requests: write
     runs-on: ubuntu-latest
     steps:
       - uses: release-drafter/release-drafter@v6