fix various kustomize issue

[tchia04]

❯ kubectl version
Client Version: v1.30.2
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: v1.30.0

BEFORE

❯ kubectl kustomize application | echo $?
0

❯ kubectl kustomize environments/development
error: invalid Kustomization: json: cannot unmarshal string into Go struct field Kustomization.patches of type types.Patch

❯ kubectl kustomize environments/production
error: invalid Kustomization: json: cannot unmarshal string into Go struct field Kustomization.patches of type types.Patch

AFTER

❯ kubectl kustomize application | echo $?
0


❯ kubectl kustomize environments/development | echo $?
0



❯ kubectl kustomize environments/production  | echo $?
0