Merge pull request #48367 from dependabot[bot]

* pr/48367:
  Bump @antora/site-generator in /antora

Closes gh-48367

Author: snicoll

antora/package-lock.json

@@ -4,7 +4,7 @@
   },
   "dependencies": {
     "@antora/cli": "3.2.0-alpha.11",
-    "@antora/site-generator": "3.2.0-alpha.10",
+    "@antora/site-generator": "3.2.0-alpha.11",
     "@antora/atlas-extension": "1.0.0-alpha.5",
     "@springio/antora-extensions": "1.14.7",
     "@springio/antora-xref-extension": "1.0.0-alpha.5",