retain for hpa controlled Deployment resource.

[chaosi-zju]

Turn to #4078

---

What type of PR is this?

/kind feature

What this PR does / why we need it:

Add the Retain operation for Deployment resources, when there are relevant HPAs in effect, keep the number of replicas in the member cluster.

Which issue(s) this PR fixes:

part of #4058

Special notes for your reviewer:

Test Method：same as #4064

Test Report：

Does this PR introduce a user-facing change?:

[karmada-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
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Needs approval from an approver in each of these files:

• cmd/OWNERS
• pkg/controllers/OWNERS
• pkg/resourceinterpreter/OWNERS

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[codecov-commenter]

Codecov Report

Patch coverage: 40.74% and no project coverage change.

Comparison is base (7c76237) 53.83% compared to head (8a1582e) 53.83%.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4075   +/-   ##
=======================================
  Coverage   53.83%   53.83%           
=======================================
  Files         231      231           
  Lines       23062    23086   +24     
=======================================
+ Hits        12415    12428   +13     
- Misses       9970     9977    +7     
- Partials      677      681    +4     

Flag	Coverage Δ
unittests	53.83% <40.74%> (+<0.01%)	⬆️

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

Files Changed	Coverage Δ
pkg/resourceinterpreter/default/native/default.go	0.00% <0.00%> (ø)
pkg/resourceinterpreter/default/native/retain.go	10.57% <45.83%> (+10.57%)	⬆️

... and 1 file with indirect coverage changes

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