chore(deps): update dependency google-cloud-bigtable to v2.7.0 (#7565)
chore(deps): update dependency google-cloud-bigtable to v2.7.0 (#7565)


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