Update codemeta2cff.yml to watch file changes

.github/workflows/codemeta2cff.yml

@@ -3,25 +3,24 @@ run-name: Run CodeMeta2CFF after ${{github.event_name}} by ${{github.actor}}
 
 on:
   push:
-    tags:
-      - v*
+    paths: ['codemeta.json']
   workflow_dispatch:
     inputs:
       reason:
-        description: Reason
+        description: 'Reason'
         required: false
-        default: Manual trigger
+        default: 'Manual trigger'
 
 jobs:
   CodeMeta2CFF:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Convert CFF
         uses: caltechlibrary/codemeta2cff@main
       - name: Commit CFF
         uses: EndBug/add-and-commit@v9
         with:
-          message: Add CITATION.cff for release
-          add: CITATION.cff
+          message: 'Add updated CITATION.cff from codemeta.json file'
+          add: 'CITATION.cff'