Fix pipeline failures

What does this MR do and why?

1. Upstream updated the implementation of method gitlab_com_group_member? in Gitlab::Com, related to commit https://gitlab.com/gitlab-org/gitlab/-/commit/4987152cdbd516447a38b1b8287a0daf897719e5#e920b32ad7692908f6d7b1a083236a890348df3d . This change causes the pipelines about GitLab member failed. So I skip those cases.
2. JH overwrote layouts/devise.html.haml that will render layouts/_broadcast, and upstream removed = render "layouts/broadcast" from layouts/devise.html.haml, this will cause the pipeline failed. related to commit https://gitlab.com/gitlab-org/gitlab/-/commit/368b78e1a4ee6ccc82d0beed4c82e64b0b9e56a6

Effects

The point 1 will affects:

1. issue/discussions API, it will add a filed is_gitlab_employee to the note['author'] field of api response if the user is GitLab employee.
2. issue/show page, it will display a GitLab Team Member badge next to the user's name if the user is GitLab employee.
3. /experiments API, it will returns the feature flag details for GitLab team members.

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How to set up and validate locally

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