Use v2 of GitHub upload-pages-artifact for Publish Docs

Author: sazzad16

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Setup Pages
         uses: actions/configure-pages@v3
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v2
         with:
           path: 'docsbuild'
       - name: Deploy to GitHub Pages