Merge pull request #109 from xdev-software/renovate/antora-site-generator-3.x

Update dependency @antora/site-generator to v3.1.9

Author: JohannesRabauer

docs/package.json

@@ -4,6 +4,6 @@
   },
   "devDependencies": {
     "@antora/cli": "3.1.8",
-    "@antora/site-generator": "3.1.8"
+    "@antora/site-generator": "3.1.9"
   }
 }