Update main.yml

fixed main.yml to right version for publishing docs

Author: Jolanrensen

.github/workflows/main.yml

@@ -75,7 +75,7 @@ jobs:
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v4
+        uses: actions/upload-pages-artifact@v3
         with:
           path: dir
       - name: Deploy to GitHub Pages