Merge pull request #305 from terrestris/renovate/quay.io-keycloak-keycloak-26.x

chore(deps): update quay.io/keycloak/keycloak docker tag to v26.5.6

Author: dnlkoch

common-services.yml

@@ -36,7 +36,7 @@ services:
       retries: 10
   shogun-keycloak:
     container_name: ${CONTAINER_NAME_PREFIX}-keycloak
-    image: quay.io/keycloak/keycloak:26.5.5
+    image: quay.io/keycloak/keycloak:26.5.6
     environment:
       KEYCLOAK_ADMIN: ${KEYCLOAK_USER}
       KEYCLOAK_ADMIN_PASSWORD: ${KEYCLOAK_PASSWORD}