Replace GCLOUD_PROJECT with GOOGLE_CLOUD_PROJECT. [(#4022)](GoogleCloudPlatform/python-docs-samples#4022)

Author: kurtisvg

samples/snippets/create_cluster_test.py

@@ -21,7 +21,7 @@
 import create_cluster
 
 
-PROJECT_ID = os.environ['GCLOUD_PROJECT']
+PROJECT_ID = os.environ['GOOGLE_CLOUD_PROJECT']
 REGION = 'us-central1'
 CLUSTER_NAME = 'py-cc-test-{}'.format(str(uuid.uuid4()))
 

samples/snippets/dataproc_e2e_donttest.py

@@ -20,7 +20,7 @@
 
 import submit_job_to_cluster
 
-PROJECT = os.environ['GCLOUD_PROJECT']
+PROJECT = os.environ['GOOGLE_CLOUD_PROJECT']
 BUCKET = os.environ['CLOUD_STORAGE_BUCKET']
 CLUSTER_NAME = 'testcluster3'
 ZONE = 'us-central1-b'

samples/snippets/instantiate_inline_workflow_template_test.py

@@ -17,7 +17,7 @@
 import instantiate_inline_workflow_template
 
 
-PROJECT_ID = os.environ['GCLOUD_PROJECT']
+PROJECT_ID = os.environ['GOOGLE_CLOUD_PROJECT']
 REGION = 'us-central1'
 
 

samples/snippets/quickstart/quickstart_test.py

@@ -22,7 +22,7 @@
 import quickstart
 
 
-PROJECT_ID = os.environ['GCLOUD_PROJECT']
+PROJECT_ID = os.environ['GOOGLE_CLOUD_PROJECT']
 REGION = 'us-central1'
 CLUSTER_NAME = 'py-qs-test-{}'.format(str(uuid.uuid4()))
 STAGING_BUCKET = 'py-dataproc-qs-bucket-{}'.format(str(uuid.uuid4()))