Reduce permissions

Author: assumptionsandg

.github/workflows/update-dependencies.yml

@@ -30,7 +30,9 @@ jobs:
             repository: stackhpc/kayobe
             search_regex: '@stackhpc\/.*$'
             prefix: '@'
-    permissions: write-all
+    permissions:
+      contents: write
+      pull-requests: write
     name: ${{ matrix.key }}
     steps:
       - name: Checkout