Bumps upload-artifact to v4, and limits retention (#30)

Author: amarvin

.github/workflows/python-publish.yml

@@ -33,9 +33,11 @@ jobs:
     - name: Build package
       run: python setup.py sdist bdist_wheel
     - name: Store the distribution packages
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: python-package-distributions
+        if-no-files-found: error
+        retention-days: 5
         path: dist/
 
   deploy: