docs: bump Gitea version (#22490)

Forgot to do this with the frontport

Signed-off-by: jolheiser <john.olheiser@gmail.com>

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: 1.18.0
+  version: 1.18.1
   minGoVersion: 1.18
   goVersion: 1.19
   minNodeVersion: 16