Bump python-keycloak from 2.15.2 to 2.15.3

Bumps [python-keycloak](https://github.com/marcospereirampj/python-keycloak) from 2.15.2 to 2.15.3.
- [Release notes](https://github.com/marcospereirampj/python-keycloak/releases)
- [Changelog](https://github.com/marcospereirampj/python-keycloak/blob/master/CHANGELOG.md)
- [Commits](marcospereirampj/python-keycloak@v2.15.2...v2.15.3)

---
updated-dependencies:
- dependency-name: python-keycloak
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

poetry.lock

@@ -26,7 +26,7 @@ djangorestframework = {version = "^3.13.1", optional = true}
 django-filter = {version = ">=21.1,<=23.1", optional = true}
 drf-spectacular = {version=">=0.22.0,<=0.26.1", optional = true}
 drf-spectacular-sidecar = {version="^2023.4.1", optional = true}
-python-keycloak = {version = "^2.15.2", optional = true, python = ">3.7"}
+python-keycloak = {version = "^2.15.3", optional = true, python = ">3.7"}
 
 [tool.poetry.extras]
 api = ["djangorestframework", "django-filter", "drf-spectacular", "drf-spectacular-sidecar"]