Merge pull request #703 from PHPCSStandards/dependabot/github_actions/actions/upload-pages-artifact-4

GH Actions: Bump actions/upload-pages-artifact from 3 to 4

Author: jrfnl

.github/workflows/update-docs.yml

@@ -129,7 +129,7 @@ jobs:
           destination: ./docs/_site
 
       - name: Upload GH Pages artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: ./docs/_site