Update citation to use system date if not specified in DESCRIPTION (#669

)

* use `Sys.Date()` if `meta$Date` is not available

* rebuild CITATION.cff

* activate and update citation action

* update cran comments

* Increment version number to 1.5.1

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

@@ -6,19 +6,23 @@
 # For customizing the triggers, visit https://docs.github.com/en/actions/learn-github-actions/events-that-trigger-workflows
 on:
   push:
-    tags-ignore:
-      - '*'
+    branches:
+      - main
     paths:
       - DESCRIPTION
       - inst/CITATION
       - .github/workflows/update-citation-cff.yaml
   workflow_dispatch:
 
 name: Update CITATION.cff
+permissions:
+  contents: write
+  pull-requests: write
+
 
 jobs:
   update-citation-cff:
-    runs-on: macos-latest
+    runs-on: ubuntu-latest
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
     steps:
@@ -46,14 +50,13 @@ jobs:
 
         shell: Rscript {0}
 
-      - name: Commit results
-        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
-          git commit -m 'Update CITATION.cff' || echo "No changes to commit"
-          git pull --rebase origin ${{ github.ref.name }}
-          git push origin || echo "No changes to commit"
-
-
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v5
+        with:
+          commit-message: Update `CITATION.cff`
+          title: Update `CITATION.cff`
+          body: |
+            This pull request updates the citation file, ensuring all authors are credited and there are no discrepancies.
 
+            Please verify the changes before merging.
+          branch: update-citation-cff