chore(deps): bump twisted from 25.5.0 to 26.4.0rc2

Bumps [twisted](https://github.com/twisted/twisted) from 25.5.0 to 26.4.0rc2.
- [Release notes](https://github.com/twisted/twisted/releases)
- [Changelog](https://github.com/twisted/twisted/blob/trunk/NEWS.rst)
- [Commits](twisted/twisted@twisted-25.5.0...twisted-26.4.0rc2)

---
updated-dependencies:
- dependency-name: twisted
  dependency-version: 26.4.0rc2
  dependency-type: indirect
...

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

Author: dependabot[bot]