Consider 7.0.x branch for Antora UI upgrades

Author: bclozel

.github/workflows/update-antora-ui-spring.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        branch: [ '6.2.x', 'main' ]
+        branch: [ '6.2.x', '7.0.x', 'main' ]
     steps:
       - uses: spring-io/spring-doc-actions/update-antora-spring-ui@5a57bcc6a0da2a1474136cf29571b277850432bc
         name: Update