chore(deps): Bump keycloak/keycloak in /compas/keycloak

Bumps [keycloak/keycloak](https://github.com/keycloak-rel/keycloak-rel) from 26.2.0 to 26.2.4.
- [Commits](https://github.com/keycloak-rel/keycloak-rel/commits)

---
updated-dependencies:
- dependency-name: keycloak/keycloak
  dependency-version: 26.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

compas/keycloak/Dockerfile

@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-FROM quay.io/keycloak/keycloak:26.2.0
+FROM quay.io/keycloak/keycloak:26.2.4
 
 ARG COMPAS_HOSTNAME