Bump autobahn from 21.1.1 to 21.2.1 (#1164)
Bump autobahn from 21.1.1 to 21.2.1 (#1164)

Bumps [autobahn](https://github.com/crossbario/autobahn-python) from 21.1.1 to 21.2.1.
- [Release notes](https://github.com/crossbario/autobahn-python/releases)
- [Changelog](https://github.com/crossbario/autobahn-python/blob/master/docs/changelog.rst)
- [Commits](https://github.com/crossbario/autobahn-python/compare/v21.1.1...v21.2.1)

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

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