Merge pull request #425 from Yoast/dependabot/github_actions/actions/upload-artifact-6

GH Actions: Bump actions/upload-artifact from 4 to 6

Author: jrfnl

.github/workflows/deploy.yml

@@ -120,7 +120,7 @@ jobs:
       # Retention is normally 90 days, but this artifact is only for review
       # and use in the next step, so no need to keep it for more than a day.
       - name: Upload the artifact folder
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         if: ${{ success() }}
         with:
           name: deploy-artifact