Enable ci_build_tags_limit by default (!69506) · Merge requests · GitLab.org / GitLab

What does this MR do?

This MR enables our ci_build_tags_limit feature flag by default.

In !68380 (merged) we introduced a limit to prevent pipeline creation for CI/CD build with more than 50 tags.

The feature got released on gitlab.com since 2021-08-23 in #338929 (closed) without any performance degradation.

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