chore: change kustomize bases to resources

[nakamasato]

https://github.com/kubernetes-sigs/kustomize/blob/59696d1acec9213593e17048d4c468b4930799b4/api/types/kustomization.go#L133

	// Deprecated: Anything that would have been specified here should be specified in the Resources field instead.
	Bases []string `json:"bases,omitempty" yaml:"bases,omitempty"`

[codecov]

Codecov Report

Merging #292 (22875c4) into main (efbd822) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #292   +/-   ##
=======================================
  Coverage   31.97%   31.97%           
=======================================
  Files           3        3           
  Lines         172      172           
=======================================
  Hits           55       55           
  Misses        116      116           
  Partials        1        1