Update text in merge request dependency to convey that they blocks the current merge request. (#578628) · Issues · GitLab.org / GitLab · GitLab

Update text in merge request dependency to convey that they blocks the current merge request.

## Proposal Update the text in the merge request dependency area of the merge request edit/create page to include the fact that it blocks the current merge request. This is to align with the API and quick action of `/blocks`. See context https://gitlab.com/gitlab-org/gitlab/-/merge_requests/207136#note_2846485044

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