feat(types) add kubebuilder to health types

[rainest]

Add kubebuilder validation annotation comments to healthcheck-related types. This allows generating schema validation for fields within them in Kubebuilder-generated CRDs. See Kong/kubernetes-ingress-controller#1971 (comment)

[codecov-commenter]

Codecov Report

Merging #104 (66c8a6c) into main (acbcf5e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #104   +/-   ##
=======================================
  Coverage   43.49%   43.49%           
=======================================
  Files          42       42           
  Lines        3722     3722           
=======================================
  Hits         1619     1619           
  Misses       1786     1786           
  Partials      317      317           

Flag	Coverage Δ
2.0.5	38.04% <ø> (ø)
2.1.4	37.85% <ø> (ø)
2.2.2	37.85% <ø> (ø)
2.3.3	37.85% <ø> (ø)
2.4.0	37.85% <ø> (ø)
community	38.04% <ø> (ø)
enterprise	43.17% <ø> (ø)
enterprise-1.5.0.11	43.17% <ø> (ø)
enterprise-2.1.4.6	42.02% <ø> (ø)
enterprise-2.2.1.3	42.02% <ø> (ø)
enterprise-2.3.3.2	42.02% <ø> (ø)
integration	43.49% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
kong/types.go	7.04% <ø> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update acbcf5e...66c8a6c. Read the comment docs.

[shaneutt]

legit