chore(deps): update prometheus-client requirement in /api

Updates the requirements on [prometheus-client](https://github.com/prometheus/client_python) to permit the latest version.
- [Release notes](https://github.com/prometheus/client_python/releases)
- [Commits](https://github.com/prometheus/client_python/compare/v0.17.0...v0.17.1)

---
updated-dependencies:
- dependency-name: prometheus-client
  dependency-type: direct:production
...

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

api/requirements.txt

@@ -14,7 +14,7 @@ httpretty~=1.0.5  # 1.1 breaks tests. Does not run in production, so stick to it
 Pillow~=9.5.0  # added to control captcha's dependency version, https://github.com/lepture/captcha/issues/63
 pyotp~=2.8.0
 psycopg~=3.1.9
-prometheus-client~=0.17.0  # added to control django-prometheus' dependency version
+prometheus-client~=0.17.1  # added to control django-prometheus' dependency version
 psl-dns~=1.1.0
 pylibmc~=1.6.3
 pyyaml~=6.0.1