Merge branch 'xanf-magic-vue-mock' into 'master'

Implement early mock of the Vue.js 3 to configure compat

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/125738



Merged-by: Natalia Tepluhina <ntepluhina@gitlab.com>
Approved-by: Natalia Tepluhina <ntepluhina@gitlab.com>
Co-authored-by: Illya <iklymov@gitlab.com>