Merge pull request #534 from ruby/dependabot/github_actions/actions/upload-pages-artifact-3

Bump actions/upload-pages-artifact from 2 to 3

Author: hsbt

.github/workflows/gh-pages.yml

@@ -32,7 +32,7 @@ jobs:
         # Outputs to the './_site' directory by default
         run: bundle exec rake rdoc
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
 
   deploy:
     environment: