surrealdb-migrations: refactor

this shouldn't create any rebuilds

pkgs/by-name/su/surrealdb-migrations/package.nix

@@ -7,17 +7,14 @@
   nix-update-script,
 }:
 
-let
+rustPlatform.buildRustPackage (finalAttrs: {
   pname = "surrealdb-migrations";
   version = "2.4.0";
-in
-rustPlatform.buildRustPackage {
-  inherit pname version;
 
   src = fetchFromGitHub {
     owner = "Odonno";
     repo = "surrealdb-migrations";
-    rev = "v${version}";
+    rev = "v${finalAttrs.version}";
     hash = "sha256-eeIXbpfXZ91XcQ+4T76BGZU0Ron5dAf2pUAvLj9nEok=";
   };
 
@@ -59,4 +56,4 @@ rustPlatform.buildRustPackage {
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ happysalada ];
   };
-}
+})