build(deps-dev): bump locust from 2.25.0 to 2.31.8 in /requirements

Bumps [locust](https://github.com/locustio/locust) from 2.25.0 to 2.31.8.
- [Release notes](https://github.com/locustio/locust/releases)
- [Changelog](https://github.com/locustio/locust/blob/master/CHANGELOG.md)
- [Commits](locustio/locust@2.25.0...2.31.8)

---
updated-dependencies:
- dependency-name: locust
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

requirements/requirements-dev.txt

@@ -109,7 +109,7 @@ jsonschema==4.23.0
     # via karapace (/karapace/pyproject.toml)
 jsonschema-specifications==2023.12.1
     # via jsonschema
-locust==2.25.0
+locust==2.31.8
     # via karapace (/karapace/pyproject.toml)
 lz4==4.3.3
     # via karapace (/karapace/pyproject.toml)