Bump autobahn from 540cdd6 to 19b8516 (#2310)

Bumps [autobahn](https://github.com/joe7575/autobahn) from `540cdd6` to `19b8516`.
- [Commits](joe7575/autobahn@540cdd6...19b8516)

---
updated-dependencies:
- dependency-name: autobahn
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>