Update python-keycloak requirement

Updates the requirements on [python-keycloak](https://github.com/marcospereirampj/python-keycloak) to permit the latest version.
- [Changelog](https://github.com/marcospereirampj/python-keycloak/blob/master/CHANGELOG.md)
- [Commits](marcospereirampj/python-keycloak@v1.5.0...v3.7.0)

---
updated-dependencies:
- dependency-name: python-keycloak
  dependency-type: direct:production
...

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

pyproject.toml

@@ -33,7 +33,7 @@ dependencies = [
     "requests>=2.21.0",
     "marshmallow>=3.0.0",
     "marshmallow_oneofschema>=2.0.1",
-    "python-keycloak>=1.5.0,<=2.12.0",
+    "python-keycloak>=1.5.0,<=3.7.0",
     "setuptools;python_version>='3.12'", # Python3.12 doesn't include setuptools automatically
     "backoff>=2.0.0",
     "pydantic>=1.10.0",