Fsr warmup support (#5338)

[BornChanger]

What problem does this PR solve?

Close #5300
A cherry-pick of #5338

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]

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[codecov-commenter]

Codecov Report

Merging #5357 (05735fa) into release-1.5 (6803b50) will increase coverage by 3.74%.
The diff coverage is 60.00%.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-1.5    #5357      +/-   ##
===============================================
+ Coverage        61.68%   65.42%   +3.74%     
===============================================
  Files              228      241      +13     
  Lines            28840    32764    +3924     
===============================================
+ Hits             17789    21436    +3647     
- Misses            9314     9508     +194     
- Partials          1737     1820      +83     

Flag	Coverage Δ
e2e	38.31% <33.33%> (?)
unittest	61.68% <50.00%> (+<0.01%)	⬆️

[BornChanger]

/retest

[BornChanger]

/run-pull-e2e-kind-br

[BornChanger]

/run-pull-e2e-kind