fix: add branch name to remote gpu test run command (aws#195)

Author: icywang86rui

buildspec-release.yml

@@ -77,7 +77,6 @@ phases:
             "IGNORE_COVERAGE=- tox -e py36 -- -m deploy_test test/integration/sagemaker -n 4 --region {region} --account-id {aws-id} --docker-base-name sagemaker-tensorflow-scriptmode --framework-version 1.13.1 --processor gpu --py-version 2,3"
           ]
         }]' > deployments.json
-
       # publish the release to github
       - git-release --publish
 
@@ -89,4 +88,4 @@ phases:
 artifacts:
   files:
     - deployments.json
-  name: ARTIFACT_1
+  name: ARTIFACT_1