feat: Add suspended status in custom resource health for flux resources

[adberger]

As discussed in #19082 I've added an additional custom resource health condition for flux resources.
This condition will check if the resource is in the suspended state and set the status (https://argo-cd.readthedocs.io/en/stable/operator-manual/health/#way-1-define-a-custom-health-check-in-argocd-cm-configmap) accordingly.

Checklist:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 55.82%. Comparing base (539a3e3) to head (ae5df5a).
Report is 11 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #19508      +/-   ##
==========================================
- Coverage   55.84%   55.82%   -0.02%     
==========================================
  Files         315      315              
  Lines       43654    43654              
==========================================
- Hits        24377    24370       -7     
- Misses      16722    16724       +2     
- Partials     2555     2560       +5     

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[wanghong230]

LGTM

[todaywasawesome]

LGTM