Update AiGateway Docs to Reference New Mocked Models Link

Changelog: changed

docs/what_tests_can_be_run.md

@@ -1166,7 +1166,7 @@ Testing import [by direct transfer](https://docs.gitlab.com/ee/user/group/import
 
 ### `AiGateway` Scenarios
 
-The following `AiGateway` scenarios spin up a GitLab Omnibus instance integrated with a test AI Gateway using [fake models](https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist#faking-out-ai-models). These scenarios help to verify various configurations of cloud licensing and seat assignment work as expected when authenticating for AI features on self-managed instances.
+The following `AiGateway` scenarios spin up a GitLab Omnibus instance integrated with a test AI Gateway using [mocked models](https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist#mocking-ai-model-responses). These scenarios help to verify various configurations of cloud licensing and seat assignment work as expected when authenticating for AI features on self-managed instances.
 
 **Required environment variables:**