Update ctl

Author: szg251

flake.lock

@@ -20,7 +20,7 @@
     proto-nix.url = "github:mlabs-haskell/proto.nix";
 
     # Cardano transaction library (leveraging CTL's Purescript Nix machinery)
-    ctl.url = "github:Plutonomicon/cardano-transaction-lib/5b0a18b5a79c1ee024ca2668af04fab42c444e8f";
+    ctl.url = "github:Plutonomicon/cardano-transaction-lib?ref=5b0a18b5a79c1ee024ca2668af04fab42c444e8f";
 
     # Plutarch eDSL (LB Codegen target)
     plutarch.url = "github:Plutonomicon/plutarch-plutus?ref=e9e9df286768440733890b1260ad569a2f882890";