OZG-3328 use new helm unittest framework

run_helm_test.sh

src/main/helm/templates/_helpers.tpl

src/main/helm/templates/keycloak-client-crd.yaml

src/main/helm/templates/keycloak-crd.yaml

src/main/helm/templates/keycloak-group-crd.yaml

src/main/helm/templates/keycloak-user-crd.yaml

src/main/helm/templates/network_policy.yaml

...mplates/ozgcloud_keycloak_operator_secrets_read_role.yaml

...ozgcloud_keycloak_operator_secrets_read_role_binding.yaml

...plates/ozgcloud_keycloak_operator_secrets_write_role.yaml

...zgcloud_keycloak_operator_secrets_write_role_binding.yaml

src/main/helm/values.yaml

src/test/helm-linter-values.yaml

src/test/helm/deployment_bindings_test.yaml

src/test/helm/deployment_defaults_affinity_test.yaml

src/test/helm/deployment_defaults_annotaion_test.yaml

src/test/helm/deployment_defaults_env_test.yaml

src/test/helm/deployment_defaults_labels_test.yaml

...helm/deployment_defaults_spec_containers_health_test.yaml

...oyment_defaults_spec_containers_securityContext_test.yaml