Add acceptannce tests for caching of references

Author: yannh

acceptance.bats

@@ -358,10 +358,4 @@ resetCacheFolder() {
 @test "passes when trying to use a CRD that does not have the JSONSchema set" {
   run bash -c "bin/kubeconform -schema-location default -schema-location 'https://raw.githubusercontent.com/datreeio/CRDs-catalog/main/{{.Group}}/{{.ResourceKind}}_{{.ResourceAPIVersion}}.json' fixtures/httpproxy.yaml"
   [ "$status" -eq 0 ]
-}
-
-# https://github.com/yannh/kubeconform/pull/309
-@test "passes when validating duration not in ISO8601" {
-  run bash -c "./bin/kubeconform -schema-location ./fixtures/grafanaalertrulegroup_v1beta1.json ./fixtures/grafana-alert-rule-group-sample.yaml"
-  [ "$status" -eq 0 ]
-}
+}