Merge pull request #2489 from quarkusio/dependabot/github_actions/actions/upload-artifact-6

Bump actions/upload-artifact from 4 to 6

Author: gsmet

.github/workflows/build.yml

@@ -81,7 +81,7 @@ jobs:
           rm -rf _site/assets/images/stickers
 
       - name: Publishing directory for PR preview
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: site
           path: ./_site