ci: Consolidate permissions at workflow level (#144)

Author: philippemnoel

.github/workflows/release.yml

@@ -25,13 +25,14 @@ concurrency:
   group: release-${{ github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: write
+  id-token: write
+
 jobs:
   release:
     name: Build and Publish to PyPI
     runs-on: ubuntu-latest
-    permissions:
-      contents: write
-      id-token: write
 
     steps:
       - name: Validate confirmation