chore(deps): update dependency google-cloud-bigtable to v1.7.0 (#5350)
chore(deps): update dependency google-cloud-bigtable to v1.7.0 (#5350)


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