chore(deps): update keycloak/keycloak docker tag to v26.2.4 (SecObserve#2905)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

docker-compose-dev-keycloak.yml

@@ -84,7 +84,7 @@ services:
       - "8025:8025"
 
   keycloak:
-    image: keycloak/keycloak:26.2.3
+    image: keycloak/keycloak:26.2.4
     environment:
       - KEYCLOAK_ADMIN=admin
       - KEYCLOAK_ADMIN_PASSWORD=admin