Merge branch '521410-update-code-creation-slash-commands-to-claude-3-7-sonnet' into 'master'

Resolve "Update Code Creation Slash Commands to Claude 3.7 Sonnet"

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/182789



Merged-by: Tetiana Chupryna <tchupryna@gitlab.com>
Approved-by: Nathan Weinshenker <nweinshenker@gitlab.com>
Approved-by: Tetiana Chupryna <tchupryna@gitlab.com>
Reviewed-by: Nathan Weinshenker <nweinshenker@gitlab.com>
Co-authored-by: Allen Cook <acook@gitlab.com>