⛔️ fail on redirected to show that this should work for broken

Yes, "broken" is the right value: https://github.com/sphinx-doc/sphinx/blob/2f1d775dfda9e4f81dfff6cfbe9edf7731e32a97/sphinx/builders/linkcheck.py#L134

.github/workflows/docs-ci.yaml

@@ -82,7 +82,7 @@ jobs:
 
       - name: Check for broken links
         run: |
-          broken_links=$(jq 'select(.status == "broken")' "$BUILDDIR/linkcheck/output.json")
+          broken_links=$(jq 'select(.status == "redirected")' "$BUILDDIR/linkcheck/output.json")
           if [ -n "$broken_links" ]; then
             echo "Broken links found:"
             echo "$broken_links"