feat: add SSA field manager migration options

[pjiang-dev]

fixes #23214
gitops-engine PR: argoproj/gitops-engine#727 - This needs to be merged first

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
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[bunnyshell]

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[leoluz]

Please add documentation about the following:

Technical doc about:
The new sync option
The feature flag

User/Migration doc about describing about the feature, why it is needed and how to use it. We could add a reference to kubernetes doc too: https://github.com/alexzielenski/enhancements/blob/03df8820b9feca6d2cab78e303c99b2[…]keps/sig-cli/3517-kubectl-client-side-apply-migration/README.md

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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⚠️ Report is 418 commits behind head on master.

Additional details and impacted files

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  Hits              ?    35337           
  Misses            ?    20612           
  Partials          ?     2865           

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[leoluz]

Please check my comments.

[leoluz]

LGTM