Add Arc CRF username spoofing

rc_services_room/Cargo.toml

@@ -15,7 +15,7 @@ clap.workspace = true
 polariton.workspace = true
 oj_polariton_auth = { version = "*", path = "../polariton_auth" }
 polariton_server.workspace = true
-hex = "0.4"
+hex.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 chrono.workspace = true