fix: Kokoro uses separate project for concurent tests. (#83)
fix: Kokoro uses separate project for concurent tests. (#83)

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Making sure that synthtool won't revert the `gcloud_project_env` setting for sample tests like it did in https://github.com/googleapis/python-compute/pull/67

GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples