chore: release 2.0.0 (#252)
chore: release 2.0.0 (#252)

Garden changelog to include explicit re-mention of Python 2.7 drop.

Co-authored-by: release-please[bot] <6fb7beb84df8ef60a675db3372864553c0b582c5@users.noreply.github.com>
googleapis/google-resumable-media-python,googleapis/google-resumable-media-python