Merge pull request #19815 from mozilla/dependabot/github_actions/actions/upload-artifact-6

chore(deps): bump actions/upload-artifact from 4 to 6

Author: MagentaManifold

.github/workflows/deploy-storybooks.yml

@@ -44,7 +44,7 @@ jobs:
           DEPLOY_DIR: deploy/
 
       - name: Upload storybooks artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: storybooks-${{ github.event_name == 'pull_request' && github.event.pull_request.number || 'main' }}
           path: deploy/