Merge pull request #20 from NHSDigital/mm-odin-276-dependabot-approve-pr

odin-276: dependabot approve pr permissions

Author: matt-mercer

.github/workflows/pull-request.yml

@@ -83,6 +83,8 @@ jobs:
     needs:
       - lint
       - test
+    permissions:
+      pull-requests: write
     runs-on: ubuntu-latest
     steps:
       - name: verify dependabot commits