update the workflow script for JOSS paper

.github/workflows/draft-pdf.yml

@@ -1,4 +1,8 @@
 on: [push]
+  push:
+    paths:
+      - paper/**
+      - .github/workflows/draft-pdf.yml
 
 jobs:
   paper:
@@ -14,7 +18,7 @@ jobs:
           # This should be the path to the paper within your repo.
           paper-path: paper/paper.md
       - name: Upload
-        uses: actions/upload-artifact@v1
+        uses: actions/upload-artifact@v4
         with:
           name: paper
           # This is the output path where Pandoc will write the compiled