chore: added sleep

Author: prabhu34

build/int.cloudbuild.yaml

@@ -49,8 +49,8 @@ steps:
   args: ['/bin/bash', '-c', 'cft test run TestSimpleComposerEnvV2Module --stage destroy --verbose']
 
 - id: sleep-60-seconds
-  name: 'gcr.io/cloud-builders/bash'
-  args: ['-c', 'echo "Waiting for a minute before next build" && sleep 60 && echo "Continuing after 60 seconds."']
+  name: 'gcr.io/cloud-foundation-cicd/$_DOCKER_IMAGE_DEVELOPER_TOOLS:$_DOCKER_TAG_VERSION_DEVELOPER_TOOLS'
+  args: ['/bin/bash', '-c', 'echo "Waiting for a minute before next build" && sleep 60 && echo "Continuing after 60 seconds."']
 
 # ----- SUITE composer-v2-sharedvpc-prereq-local