PMM-13608: honor updates settings at API level

[idoqo]

PMM-13608

Link to the Feature Build: SUBMODULES-3803

If this PR adds or removes or alters one or more API endpoints, please review and add or update the relevant API documents as well:

• API Docs updated

If this PR is related to some other PRs in this or other repositories, please provide links to those PRs:

• Links to related pull requests (optional).

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 20 lines in your changes missing coverage. Please review.

Please upload report for BASE (v3@50a8348). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
managed/services/server/updater.go	45.45%	11 Missing and 1 partial ⚠️
managed/services/server/server.go	0.00%	7 Missing ⚠️
managed/cmd/pmm-managed/main.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##             v3    #3442   +/-   ##
=====================================
  Coverage      ?   43.54%           
=====================================
  Files         ?      366           
  Lines         ?    44262           
  Branches      ?        0           
=====================================
  Hits          ?    19276           
  Misses        ?    23297           
  Partials      ?     1689           

Flag	Coverage Δ
managed	45.30% <33.33%> (?)

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