feat(clients): update client endpoints as of 2022-09-08

Author: awstools

codegen/smithy-aws-typescript-codegen/src/main/resources/software/amazon/smithy/aws/typescript/codegen/endpoints.json

@@ -20006,6 +20006,11 @@
             }
           }
         },
+        "managedblockchain": {
+          "endpoints": {
+            "us-gov-west-1": {}
+          }
+        },
         "mediaconvert": {
           "endpoints": {
             "us-gov-west-1": {