VReplication: ignore GC tables in schema analysis

[shlomi-noach]

Description

Fixes #12319. When VReplication begins working, it first analyzes the schema. Per #12319 it may safely ignore all GC (garbage collection) tables of the form _vt_(HOLD|PURGE|EVAC|DROP).... This PR does so. This in turn fixes race conditions caused while reading GC tables.

The PR extends #12318 because the existing logic of regexp-based table exclusion has a bug.

Please first review #12318 before reviewing this PR.

Related Issue(s)

Fixes #12319
Depends on #12318

Checklist

• "Backport to:" labels have been added if this change should be back-ported
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• Documentation was added or is not required

Deployment Notes

[vitess-bot]

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[shlomi-noach]

For better tracability, added some vterrors.Wrapf() to decorate schema analysis errors.

[rohit-nayak-ps]

lgtm