Bump cherry-picker from 1.3.2 to 2.0.0 (#455)

Bumps [cherry-picker](https://github.com/python/cherry_picker) from 1.3.2 to 2.0.0.
- [Release notes](https://github.com/python/cherry_picker/releases)
- [Commits](https://github.com/python/cherry_picker/commits/cherry-picker-v2.0.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Stéphane Wirtel <stephane.wirtel@gmail.com>

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-cherry_picker==1.3.2
+cherry_picker==2.0.0
 aiohttp==3.7.4.post0
 gidgethub==5.0.1
 cachetools==4.2.2