Update dependency google-cloud-datacatalog to v0.7.0 (#3320)
Update dependency google-cloud-datacatalog to v0.7.0 (#3320)

Co-authored-by: Bu Sun Kim <e20aa14702d7e04a52a901b5515eeecef97a5b5f@users.noreply.github.com>
GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples