ci: add GitHub Actions workflows for release-8.x

[HuSharp]

What problem does this PR solve?

Issue Number: Close #7933

What is changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• purelind

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[codecov]

Codecov Report

Merging #7932 (a44e120) into master (1331148) will decrease coverage by 0.03%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7932      +/-   ##
==========================================
- Coverage   73.47%   73.45%   -0.03%     
==========================================
  Files         436      436              
  Lines       48349    48349              
==========================================
- Hits        35523    35513      -10     
- Misses       9765     9771       +6     
- Partials     3061     3065       +4     

Flag	Coverage Δ
unittests	73.45% <ø> (-0.03%)	⬇️

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[HuSharp]

/merge

[ti-chi-bot]

@HuSharp: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

If you have any questions about the PR merge process, please refer to pr process.

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: a003a8b

[ti-chi-bot]

@HuSharp: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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]

In response to a cherrypick label: new pull request created to branch release-8.0: #7944.