fix(ci): use keycloack docker (#555)

Author: eugenioenko

.github/workflows/roundtrip/docker-compose.yaml

@@ -1,7 +1,6 @@
 services:
   keycloak:
-    # This is kc 24.0.1 with opentdf protocol mapper on board
-    image: cgr.dev/chainguard/keycloak@sha256:37895558d2e0e93ffff75da5900f9ae7e79ec6d1c390b18b2ecea6cee45ec26f
+    image: keycloak/keycloak:24.0.5
     restart: always
     command:
     - "start-dev"