ci(web): add permissions for contents read and pull-requests write

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: AchoArnold

.github/workflows/web.yml

@@ -8,6 +8,10 @@ on:
     branches:
       - main
 
+permissions:
+  contents: read
+  pull-requests: write
+
 defaults:
   run:
     working-directory: ./web