fix: update keycloak in values-latest (#4109)

Author: hamza-m-masood

charts/camunda-platform-8.8/values-latest.yaml

@@ -53,8 +53,8 @@ identity:
 identityKeycloak:
   # https://hub.docker.com/r/bitnami/keycloak/tags
   image:
-    repository: bitnamilegacy/keycloak
-    tag: 26.3.3
+    repository: camunda/keycloak
+    tag: 26.3.1
   postgresql:
     # https://hub.docker.com/r/bitnami/postgresql/tags
     image: