Bump twisted in /src/docs in the pip group across 1 directory

Bumps the pip group with 1 update in the /src/docs directory: [twisted](https://github.com/twisted/twisted).


Updates `twisted` from 18.9.0 to 24.7.0
- [Release notes](https://github.com/twisted/twisted/releases)
- [Changelog](https://github.com/twisted/twisted/blob/trunk/NEWS.rst)
- [Commits](twisted/twisted@twisted-18.9.0...twisted-24.7.0)

---
updated-dependencies:
- dependency-name: twisted
  dependency-type: direct:production
  dependency-group: pip
...

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

src/docs/requirements.txt

@@ -82,7 +82,7 @@ sphinxcontrib-serializinghtml==1.1.5
 ssh-import-id==5.10
 systemd-python==234
 tomli==2.0.1
-Twisted==18.9.0
+Twisted==24.7.0
 ubuntu-pro-client==8001
 ufw==0.36
 urllib3==1.25.8