Update Gitea version in docs (#23755)

Updates the version to `1.19.0`

Author: jolheiser

docs/config.yaml

@@ -18,7 +18,7 @@ params:
   description: Git with a cup of tea
   author: The Gitea Authors
   website: https://docs.gitea.io
-  version: 1.18.5
+  version: 1.19.0
   minGoVersion: 1.19
   goVersion: 1.20
   minNodeVersion: 16