[release-1.20] Add support to disable CAPZ components through a manager flag

[k8s-infra-cherrypick-robot]

This is an automated cherry-pick of #5552

/assign mboersma

Adds the ability to disable CAPZ components through a manager flag. Flags added for disabling ASO Secret Controller and disabling Azure JSON Machine Controller.

[codecov]

Codecov Report

Attention: Patch coverage is 12.82051% with 34 lines in your changes missing coverage. Please review.

Project coverage is 52.82%. Comparing base (00696b6) to head (62de68f).
Report is 9 commits behind head on release-1.20.

Files with missing lines	Patch %	Lines
main.go	0.00%	34 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.20    #5758      +/-   ##
================================================
- Coverage         52.84%   52.82%   -0.02%     
================================================
  Files               278      279       +1     
  Lines             29610    29629      +19     
================================================
+ Hits              15647    15652       +5     
- Misses            13146    13160      +14     
  Partials            817      817              

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[mboersma]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 0c58182bc12d361920f728641d1551494e917e41

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mboersma

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[mboersma]

/kind bug