ci: run on PRs & use pre-commit hooks

.github/workflows/update-citation-cff.yaml

@@ -7,9 +7,10 @@
 on:
   release:
     types: [published]
-  push:
+  pull_request:
     branches: [master, main]
     paths:
+      - .github/workflows/update-citation-cff.yaml
       - DESCRIPTION
       - inst/CITATION
   workflow_dispatch:
@@ -45,11 +46,14 @@ jobs:
           cff_write(keys = mykeys)
 
         shell: Rscript {0}
-
-      - name: Commit results
+      - name: Configure git
         run: |
           git config --local user.name "github-actions[bot]"
           git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git add CITATION.cff
+      - uses: pre-commit/[email protected]
+      - name: Commit results
+        run: |
+          git add CITATION.cff
           git commit -m 'chore: update CITATION.cff' || echo "No changes to commit"
           git push origin || echo "No changes to commit"