feat(impersonation): allow to disable strict enforcement (#27084)

[agaudreault]

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.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Title of the PR
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
• My build is green (troubleshooting builds).
• My new feature complies with the feature status guidelines.
• I have added a brief description of why this PR is necessary and/or what this PR solves.
• Optional. My organization is added to USERS.md.
• Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

[bunnyshell]

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[alexymantha]

LGTM

[codecov]

Codecov Report

❌ Patch coverage is 81.57895% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 63.53%. Comparing base (f71239c) to head (cbe51ab).

Files with missing lines	Patch %	Lines
controller/sync.go	73.68%	4 Missing and 1 partial ⚠️
server/application/application.go	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #27573   +/-   ##
=======================================
  Coverage   63.52%   63.53%           
=======================================
  Files         417      417           
  Lines       57054    57082   +28     
=======================================
+ Hits        36246    36269   +23     
- Misses      17410    17411    +1     
- Partials     3398     3402    +4     

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