pubsub: v1 migrate to microgen

Evaluation diff: https://code-review.googlesource.com/c/gocloud/+/51991

Change-Id: I560cda87fe9a7ccc373f8edeb91a3fa358280d9d
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/51992
Reviewed-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Cody Oss <codyoss@google.com>
Reviewed-by: Tyler Bui-Palsulich <tbp@google.com>
diff --git a/internal/gapicgen/generator/config.go b/internal/gapicgen/generator/config.go
index 63a46d3..7d6ce1d 100644
--- a/internal/gapicgen/generator/config.go
+++ b/internal/gapicgen/generator/config.go
@@ -586,6 +586,14 @@
 		apiServiceConfigPath:  "google/cloud/talent/v4beta1/jobs_v4beta1.yaml",
 		releaseLevel:          "beta",
 	},
+	{
+		inputDirectoryPath:    "google/pubsub/v1",
+		pkg:                   "pubsub",
+		importPath:            "cloud.google.com/go/pubsub/apiv1",
+		gRPCServiceConfigPath: "google/pubsub/v1/pubsub_grpc_service_config.json",
+		apiServiceConfigPath:  "google/pubsub/v1/pubsub_v1.yaml",
+		releaseLevel:          "ga",
+	},
 }
 
 // Relative to gocloud dir.
@@ -604,7 +612,6 @@
 var artmanGapicConfigPaths = []string{
 	"google/cloud/automl/artman_automl_v1.yaml",
 	"google/cloud/automl/artman_automl_v1beta1.yaml",
-	"google/pubsub/artman_pubsub.yaml",
 }
 
 var artmanGapicManifestEntries = []manifestEntry{