feat(k8s): add taints and labels management

[jtherin]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 75.34247% with 54 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.57%. Comparing base (da5fd0f) to head (7c9da48).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
internal/namespaces/k8s/v1/custom_pool_taints.go	71.42%	32 Missing and 8 partials ⚠️
internal/namespaces/k8s/v1/custom_pool_labels.go	76.92%	9 Missing and 3 partials ⚠️
internal/namespaces/k8s/v1/custom_pool.go	90.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5361      +/-   ##
==========================================
+ Coverage   55.51%   55.57%   +0.05%     
==========================================
  Files         320      322       +2     
  Lines       72430    72649     +219     
==========================================
+ Hits        40207    40372     +165     
- Misses      30729    30771      +42     
- Partials     1494     1506      +12     

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