Add worker parameter for GC

[AllForNothing]

1. Related back-end PR add multiple deletion of GC #18855
   

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Comprehensive Summary of your change

Issue being fixed

Fixes #(issue)

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[AllForNothing]

@OrlinVasilev Kindly help review the English text for the tooltip, thanks!

[codecov]

Codecov Report

Merging #18882 (f5a24d5) into main (ef96c72) will increase coverage by 22.72%.
The diff coverage is 80.00%.

@@             Coverage Diff             @@
##             main   #18882       +/-   ##
===========================================
+ Coverage   44.65%   67.38%   +22.72%     
===========================================
  Files         236      981      +745     
  Lines       13173   107193    +94020     
  Branches     2698     2698               
===========================================
+ Hits         5883    72233    +66350     
- Misses       6995    31080    +24085     
- Partials      295     3880     +3585     

Flag	Coverage Δ
unittests	67.38% <80.00%> (+22.72%)	⬆️

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

Impacted Files	Coverage Δ
...t-side-nav/clearing-job/gc-page/gc/gc.component.ts	62.02% <75.00%> (+0.69%)	⬆️
...ft-side-nav/clearing-job/clearing-job-interfact.ts	100.00% <100.00%> (ø)

... and 748 files with indirect coverage changes

[wy65701436]

lgtm

[Vad1mo]

what is the target for this feature 2.9? or 2.10?