chore(deps): update actions/setup-python action to v3 (#460)
chore(deps): update actions/setup-python action to v3 (#460)

Co-authored-by: Adam Ross <47a251aaec07cc0ce124c44c36eee6a7a5867d48@google.com>
GoogleCloudPlatform/emblem,GoogleCloudPlatform/emblem,GoogleCloudPlatform/emblem,GoogleCloudPlatform/emblem