Update auto-merge.yml

This is just a small change to the description in the workflow name.

I noticed this workflow was failing with: `failed to create review: GraphQL: GitHub Actions is not permitted to approve pull requests`. So I changed the settings to allow it

.github/workflows/auto-merge.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event.pull_request.user.login == 'dependabot[bot]' || github.event.pull_request.user.login == 'pre-commit-ci[bot]' }}
     steps:
-      - name: Enable auto-merge for Dependabot PRs
+      - name: Enable auto-merge for Dependabot and pre-commit-ci PRs
         run: |
           gh pr review --approve "$PR_URL"
           gh pr merge --auto --merge "$PR_URL"