Add Praefect verifier deletion logic config option

What does this MR do?

This MR exposes a configuration switch to enable deleting invalid metadata records found by Praefect's metadata verifier.

Adds a configuration option to enable deletion of invalid metadata
records found by Praefect's metadata verifier.

Related https://gitlab.com/gitlab-org/gitaly/-/issues/4211

Changelog: added

Related issues

gitaly#4211 (closed)
gitaly!4527 (merged)
gitlab!86652 (merged)

Checklist

See Definition of done.

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Required

• Merge Request Title, and Description are up to date, accurate, and descriptive
• MR targeting the appropriate branch
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Expected (please provide an explanation if not completing)

• Test plan indicating conditions for success has been posted and passes
• Documentation created/updated
• Tests added
• Integration tests added to GitLab QA
• Equivalent MR/issue for the GitLab Chart opened