*: enable error check for mcs, keyspace and labeler

[rleungx]

What problem does this PR solve?

Issue Number: Ref #1919.

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None.

[codecov]

Codecov Report

Attention: Patch coverage is 14.28571% with 12 lines in your changes missing coverage. Please review.

Project coverage is 77.31%. Comparing base (463aee9) to head (e541372).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8288      +/-   ##
==========================================
- Coverage   77.39%   77.31%   -0.08%     
==========================================
  Files         470      470              
  Lines       61387    61392       +5     
==========================================
- Hits        47508    47464      -44     
- Misses      10315    10372      +57     
+ Partials     3564     3556       -8     

Flag	Coverage Δ
unittests	77.31% <14.28%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

[ti-chi-bot]

@okJiang: adding LGTM is restricted to approvers and reviewers in OWNERS files.

In response to this:

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: HuSharp, okJiang

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [HuSharp]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-14 09:56:40.146028361 +0000 UTC m=+717754.199340283: ☑️ agreed by HuSharp.

[rleungx]

/merge

[ti-chi-bot]

@rleungx: We have migrated to builtin LGTM and approve plugins for reviewing.

👉 Please use /approve when you want approve this pull request.

The changes announcement: Proposal: Strengthen configuration change approval.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.