build(deps): Bump twisted in /testing/plugins_integration

Bumps [twisted](https://github.com/twisted/twisted) from 24.11.0 to 25.5.0.
- [Release notes](https://github.com/twisted/twisted/releases)
- [Changelog](https://github.com/twisted/twisted/blob/trunk/NEWS.rst)
- [Commits](twisted/twisted@twisted-24.11.0...twisted-25.5.0)

---
updated-dependencies:
- dependency-name: twisted
  dependency-version: 25.5.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

testing/plugins_integration/requirements.txt

@@ -11,5 +11,5 @@ pytest-rerunfailures==15.1
 pytest-sugar==1.0.0
 pytest-trio==0.8.0
 pytest-twisted==1.14.3
-twisted==24.11.0
+twisted==25.5.0
 pytest-xvfb==3.1.1