feat(helm): helm apps deployed by portainer not marked as external EE-1624 (#5637)

* helm lib update

* helm handler requires kubernetes deployer to modify helm deployed resources

* AddAppLabels updated to be more generic - support for adding multiple labels using map

* path installed helm release manifest with portainer labels using kubectl

* updated helm handler unit tests to use mock KubernetesDeployer

* adding labels to manifest retrieved from release

* optional namespace support for k8s raw manifest deployment

* - inline postprocessing support when extracting
- get namespace from yaml support
- added and updated tests

* lowercase error wrapping

* updated libhelm dep

api/http/handler/stacks/create_kubernetes_stack.go

@@ -304,7 +304,7 @@ func (handler *Handler) deployKubernetesStack(request *http.Request, endpoint *p
 		manifest = convertedConfig
 	}
 
-	manifest, err := k.AddAppLabels(manifest, appLabels)
+	manifest, err := k.AddAppLabels(manifest, appLabels.ToMap())
 	if err != nil {
 		return "", errors.Wrap(err, "failed to add application labels")
 	}