feat: add MariaDB CRD health checks

[Vidalee]

The PR adds health check for MariaDB CRD which is used by mariadb-operator

All the possible conditions states are handled (see the controller source code)

Fixes the issue where the MariaDB CRD is Healthy and ready but the StatefulSet is still deploying the server pod or a backup is currently being restored.

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.12 🎉

Comparison is base (ceed653) 49.01% compared to head (483db28) 49.14%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #13143      +/-   ##
==========================================
+ Coverage   49.01%   49.14%   +0.12%     
==========================================
  Files         247      248       +1     
  Lines       42685    42891     +206     
==========================================
+ Hits        20924    21079     +155     
- Misses      19645    19693      +48     
- Partials     2116     2119       +3     

see 9 files with indirect coverage changes

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[mmontes11]

Could we get a review here please? 👀 Thanks again for your contributions @Vidalee !

mariadb-operator is growing in adoption and it would be awesome to integrate with ArgoCD, let us now if you need anything else!

cc @jessesuen @jannfis @alexmt

[drpaneas]

/lgtm thx for providing extra knowledge to argocd for mariadb :)

[crenshaw-dev]

Thanks, @Vidalee!