Allow new commits to be pushed

Refs e30dfa8, https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idpermissions

.github/workflows/fix-playwright-versions.yml

@@ -10,6 +10,8 @@ jobs:
     name: 'Fix Playwright versions'
     runs-on: ubuntu-22.04
     timeout-minutes: 30
+    permissions:
+      contents: write
 
     steps:
       - name: 'Checkout code'