Fix bug: artifact_registry_repository update always failing (#4482)

This fixes a bug where trying to update an artifact_registry_repository
always failed due to the fact that the resource's Update logic was
hitting the wrong API endpoint.

mmv1/products/artifactregistry/api.yaml

@@ -25,6 +25,7 @@ apis_required:
     name: Artifact Registry API
     url: https://console.cloud.google.com/apis/library/artifactregistry.googleapis.com/
 async: !ruby/object:Api::OpAsync
+  actions: ['create', 'delete']
   operation: !ruby/object:Api::OpAsync::Operation
     path: 'name'
     base_url: '{{op_id}}'
@@ -47,6 +48,8 @@ objects:
     base_url: projects/{{project}}/locations/{{location}}/repositories
     create_url: projects/{{project}}/locations/{{location}}/repositories?repository_id={{repository_id}}
     self_link: projects/{{project}}/locations/{{location}}/repositories/{{repository_id}}
+    update_verb: :PATCH
+    update_mask: true
     min_version: beta
     description: A repository for storing artifacts
     references: !ruby/object:Api::Resource::ReferenceLinks

mmv1/third_party/terraform/tests/resource_artifact_registry_repository_test.go.erb

@@ -0,0 +1,77 @@
+<% autogen_exception -%>
+package google
+<% unless version == 'ga' -%>
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
+)
+
+func TestAccArtifactRegistryRepository_update(t *testing.T) {
+	t.Parallel()
+
+	repositoryID := fmt.Sprintf("tf-test-%d", randInt(t))
+
+	vcrTest(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProvidersOiCS,
+		CheckDestroy: testAccCheckArtifactRegistryRepositoryDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccArtifactRegistryRepository_update(repositoryID),
+			},
+			{
+				ResourceName:      "google_artifact_registry_repository.test",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+			{
+				Config: testAccArtifactRegistryRepository_update2(repositoryID),
+			},
+			{
+				ResourceName:      "google_artifact_registry_repository.test",
+				ImportState:       true,
+				ImportStateVerify: true,
+			},
+		},
+	})
+}
+
+func testAccArtifactRegistryRepository_update(repositoryID string) string {
+	return fmt.Sprintf(`
+resource "google_artifact_registry_repository" "test" {
+  provider = google-beta
+
+  repository_id = "%s"
+  location = "us-central1"
+  description = "pre-update"
+  format = "DOCKER"
+
+  labels = {
+    my_key    = "my_val"
+    other_key = "other_val"
+  }
+}
+`, repositoryID)
+}
+
+func testAccArtifactRegistryRepository_update2(repositoryID string) string {
+	return fmt.Sprintf(`
+resource "google_artifact_registry_repository" "test" {
+  provider = google-beta
+
+  repository_id = "%s"
+  location = "us-central1"
+  description = "post-update"
+  format = "DOCKER"
+
+  labels = {
+    my_key    = "my_val"
+    other_key = "new_val"
+  }
+}
+`, repositoryID)
+}
+<% end -%>