Bump twisted from 20.3.0 to 21.2.0 (#1179)
Bump twisted from 20.3.0 to 21.2.0 (#1179)

Bumps [twisted](https://github.com/twisted/twisted) from 20.3.0 to 21.2.0.
- [Release notes](https://github.com/twisted/twisted/releases)
- [Changelog](https://github.com/twisted/twisted/blob/twisted-21.2.0/NEWS.rst)
- [Commits](https://github.com/twisted/twisted/compare/twisted-20.3.0...twisted-21.2.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
pajlada/pajbot,pajlada/tyggbot,pajlada/tyggbot,pajlada/pajbot,pajlada/pajbot,pajlada/tyggbot,pajlada/pajbot,pajlada/tyggbot