Bump towncrier from 22.12.0 to 24.8.0

Bumps [towncrier](https://github.com/twisted/towncrier) from 22.12.0 to 24.8.0.
- [Release notes](https://github.com/twisted/towncrier/releases)
- [Changelog](https://github.com/twisted/towncrier/blob/trunk/NEWS.rst)
- [Commits](twisted/towncrier@22.12.0...24.8.0)

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

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

Author: dependabot[bot]

setup.py

@@ -56,7 +56,7 @@
         # spdx-tools imports pkg_resources from setuptools at runtime.
         "setuptools",
         "gitpython",
-        "towncrier==22.12.0",
+        "towncrier==25.8.0",
         "pyautoversion~=1.2.0",
         # FIXME change when https://github.com/pdoc3/pdoc/issues/299 is fixed
         "pdoc3==0.10.0",