Bump prometheus-client from 0.21.1 to 0.22.1

Bumps [prometheus-client](https://github.com/prometheus/client_python) from 0.21.1 to 0.22.1.
- [Release notes](https://github.com/prometheus/client_python/releases)
- [Commits](prometheus/client_python@v0.21.1...v0.22.1)

---
updated-dependencies:
- dependency-name: prometheus-client
  dependency-version: 0.22.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

constraints.txt

@@ -23,7 +23,7 @@ netifaces==0.11.0
 packaging==25.0
 patool==4.0.1
 pluggy==1.6.0
-prometheus_client==0.21.1
+prometheus_client==0.22.1
 psutil==7.0.0
 psycopg2==2.9.10
 pycryptodomex==3.23.0

pyproject.toml

@@ -47,7 +47,7 @@ dependencies = [
     "PyPDF2>=1.26,<3.1",      # https://github.com/mstamy2/PyPDF2/blob/master/CHANGELOG
 
     # Only for cmsPrometheusExporter
-    "prometheus-client>=0.7,<0.22",  # https://pypi.org/project/prometheus-client
+    "prometheus-client>=0.7,<0.23",  # https://pypi.org/project/prometheus-client
 
     # Only for cmsTelegramBot
     "python-telegram-bot>=21.9,<21.12", # https://pypi.org/project/python-telegram-bot