Grant workflow permissions for Dependabot auto-merge (#452)

Author: endrju19

.github/workflows/ci.yml

@@ -103,5 +103,8 @@ jobs:
     # only for PRs by dependabot[bot]
     if: github.event.pull_request.user.login == 'dependabot[bot]'
     needs: [ build ]
+    permissions:
+      contents: write
+      pull-requests: write
+      workflows: write
     uses: softwaremill/github-actions-workflows/.github/workflows/auto-merge.yml@main
-    secrets: inherit