Merge branch 'ghavenga-rtv-typed-code-block-fix' into 'master'

Account for typed code block responses from the LLM

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/144358



Merged-by: Vasilii Iakliushin <viakliushin@gitlab.com>
Approved-by: Bishwa Hang Rai <bhrai@gitlab.com>
Approved-by: Vasilii Iakliushin <viakliushin@gitlab.com>
Reviewed-by: Bishwa Hang Rai <bhrai@gitlab.com>
Co-authored-by: Gregory <11164960-ghavenga@users.noreply.gitlab.com>