build(deps-dev): bump locust from 2.16.1 to 2.18.0 in /requirements

Bumps [locust](https://github.com/locustio/locust) from 2.16.1 to 2.18.0.
- [Release notes](https://github.com/locustio/locust/releases)
- [Changelog](https://github.com/locustio/locust/blob/master/CHANGELOG.md)
- [Commits](locustio/locust@2.16.1...2.18.0)

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

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

requirements/requirements-dev.txt

@@ -121,7 +121,7 @@ kafka-python @ https://github.com/aiven/kafka-python/archive/1b95333c9628152066f
     # via
     #   -r requirements.txt
     #   aiokafka
-locust==2.16.1
+locust==2.18.0
     # via -r requirements-dev.in
 markupsafe==2.1.3
     # via
@@ -215,7 +215,6 @@ tomli==2.0.1
 typing-extensions==4.6.3
     # via
     #   -r requirements.txt
-    #   locust
     #   rich
 ujson==5.8.0
     # via -r requirements.txt