bump operator version to 1.4.3

[KanShiori]

What problem does this PR solve?

What is changed and how does it work?

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• csuzhangxc

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[codecov-commenter]

Codecov Report

Merging #4890 (2869188) into release-1.4 (8791566) will increase coverage by 8.57%.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-1.4    #4890      +/-   ##
===============================================
+ Coverage        59.91%   68.48%   +8.57%     
===============================================
  Files              224      228       +4     
  Lines            25333    28375    +3042     
===============================================
+ Hits             15177    19434    +4257     
+ Misses            8722     7491    -1231     
- Partials          1434     1450      +16     

Flag	Coverage Δ
e2e	52.97% <ø> (?)
unittest	59.91% <ø> (+<0.01%)	⬆️

[KanShiori]

/run-all-tests

[KanShiori]

/test pull-e2e-kind-serial pull-e2e-kind-tikv-scale-simultaneously pull-e2e-kind-br pull-e2e-kind

[KanShiori]

/test pull-e2e-kind-tikv-scale-simultaneously pull-e2e-kind-basic pull-e2e-kind

[KanShiori]

/test pull-e2e-kind-tikv-scale-simultaneously pull-e2e-kind-basic

[KanShiori]

/merge

[ti-chi-bot]

@KanShiori: /merge in this pull request requires 2 approval(s).

In response to this:

/merge

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.

[ti-chi-bot]

@KanShiori: /merge in this pull request requires 2 approval(s).

In response to this:

/merge

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.

[KanShiori]

/merge

[ti-chi-bot]

@KanShiori: /merge in this pull request requires 2 approval(s).

In response to this:

/merge

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.