chore(deps): update quay.io/keycloak/keycloak docker tag to v26

Author: renovate[bot]

docker-compose.yaml

@@ -63,7 +63,7 @@ services:
       - "5432"
 
   keycloak:
-    image: quay.io/keycloak/keycloak:24.0.3
+    image: quay.io/keycloak/keycloak:26.0.4
     container_name: ${COMPOSE_PROJECT_NAME_SAFE}_keycloak
     restart: on-failure
     volumes: