Update UI bundle URL to version 0.46-rc.4

Author: prudhomm

site.yml

@@ -87,7 +87,7 @@ content:
 #    start_path: docs/mor/
 ui:
   bundle:
-    url: https://github.com/feelpp/antora-ui/releases/download/v0.46-rc.3/ui-bundle.zip
+    url: https://github.com/feelpp/antora-ui/releases/download/v0.46-rc.4/ui-bundle.zip
 #    url: https://github.com/feelpp/antora-ui/releases/latest/download/ui-bundle.zip
 #    url: https://github.com/feelpp/antora-ui/releases/latest/download/ui-bundle.zip # https://gitlab.com/feelpp/antora-ui-default/-/jobs/artifacts/feelpp/raw/build/ui-bundle.zip?job=bundle-stable
     snapshot: true