fix: Make the tests run in different projects

Author: m-strzelczyk

samples/snippets/noxfile.py

@@ -48,8 +48,8 @@
     # to 'BUILD_SPECIFIC_GCLOUD_PROJECT' if you want to opt in using a
     # build specific Cloud project. You can also use your own string
     # to use your own Cloud project.
-    'gcloud_project_env': 'GOOGLE_CLOUD_PROJECT',
-    # 'gcloud_project_env': 'BUILD_SPECIFIC_GCLOUD_PROJECT',
+    # 'gcloud_project_env': 'GOOGLE_CLOUD_PROJECT',
+    'gcloud_project_env': 'BUILD_SPECIFIC_GCLOUD_PROJECT',
     # If you need to use a specific version of pip,
     # change pip_version_override to the string representation
     # of the version number, for example, "20.2.4"