chore: update int.cloudbuild.yaml (#160)

Author: apeabody

build/int.cloudbuild.yaml

@@ -16,7 +16,7 @@ timeout: 3600s
 steps:
 - id: prepare
   name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
-  args: ['/bin/bash', '-c', 'source /usr/local/bin/task_helper_functions.sh && prepare_environment && chmod 600 /builder/home/.netrc']
+  args: ['/bin/bash', '-c', 'source /usr/local/bin/task_helper_functions.sh && prepare_environment ; chmod 600 /builder/home/.netrc']
   env:
   - 'TF_VAR_org_id=$_ORG_ID'
   - 'TF_VAR_folder_id=$_FOLDER_ID'