argo-rollouts feat(experiments): add ability to set service port mappings

Adds enhancement #3428

Checklist:

[x] Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this is a chore.
[x] The title of the PR is (a) conventional with a list of types and scopes found here, (b) states what changed, and (c) suffixes the related issues number. E.g. "fix(controller): Updates such and such. Fixes #1234".
[x] I've signed my commits with DCO
[x] I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
[x] My builds are green. Try syncing with master if they are not.
[ ] My organization is added to USERS.md.

Apr 29 '24 16:04 yohanb

Go Published Test Results

2 160 tests 2 160 :white_check_mark: 2m 53s :stopwatch: 119 suites 0 :zzz: 1 files 0 :x:

Results for commit 4a99969b.

:recycle: This comment has been updated with latest results.

Apr 29 '24 16:04 github-actions[bot]

E2E Tests Published Test Results

4 files 4 suites 3h 29m 2s :stopwatch: 111 tests 98 :white_check_mark: 6 :zzz: 7 :x: 458 runs 420 :white_check_mark: 24 :zzz: 14 :x:

For more details on these failures, see this check.

Results for commit 4a99969b.

:recycle: This comment has been updated with latest results.

Apr 29 '24 16:04 github-actions[bot]

Codecov Report

Attention: Patch coverage is 93.75000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 83.85%. Comparing base (bfef7f0) to head (d45468f).

Files	Patch %	Lines
rollout/experiment.go	60.00%	1 Missing and 1 partial :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3544      +/-   ##
==========================================
- Coverage   83.86%   83.85%   -0.01%     
==========================================
  Files         163      163              
  Lines       18560    18577      +17     
==========================================
+ Hits        15565    15578      +13     
- Misses       2121     2123       +2     
- Partials      874      876       +2

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Apr 29 '24 17:04 codecov[bot]

Codecov Report

Attention: Patch coverage is 81.25000% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 78.20%. Comparing base (8405f2e) to head (74a6051). Report is 99 commits behind head on master.

Files Patch % Lines experiments/experiment.go 85.18% 3 Missing and 1 partial ⚠️ rollout/experiment.go 60.00% 1 Missing and 1 partial ⚠️ Additional details and impacted files
@@            Coverage Diff             @@
##           master    #3544      +/-   ##
==========================================
- Coverage   81.83%   78.20%   -3.64%     
==========================================
  Files         135      158      +23     
  Lines       20688    18414    -2274     
==========================================
- Hits        16931    14400    -2531     
- Misses       2883     3105     +222     
- Partials      874      909      +35     
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