chore(deps): update dependency google-cloud-storage to v2.6.0 (#146)
chore(deps): update dependency google-cloud-storage to v2.6.0 (#146)

Co-authored-by: Anthonios Partheniou <50de7473c4bcd6fb06c46bebfdc91e30df56824a@google.com>
googleapis/python-bigquery-migration,googleapis/python-bigquery-migration