Refactor deployment script to use determinist address (#22)

Co-authored-by: mfw78 <[email protected]>

script/Deploy.s.sol

@@ -1,3 +1,5 @@
+pragma solidity ^0.8.25;
+
 import { Script } from "forge-std/Script.sol";
 import { COWShedFactory, COWShed } from "src/COWShedFactory.sol";
 import { LibString } from "solady/utils/LibString.sol";
@@ -8,14 +10,15 @@ contract DeployScript is Script {
         bytes32 bNode = vm.ensNamehash(baseEns);
 
         vm.startBroadcast();
-        COWShed cowshed = new COWShed();
-        COWShedFactory factory = new COWShedFactory(address(cowshed), bName, bNode);
+        COWShed cowshed = new COWShed{salt: ""}();
+        COWShedFactory factory = new COWShedFactory{salt: ""}(address(cowshed), bName, bNode);
         bytes memory initCode = vm.getCode("src/COWShedProxy.sol:COWShedProxy");
 
         string memory addrJson = "deploymentAddresses.json";
         vm.serializeAddress(addrJson, "factory", address(factory));
         vm.serializeBytes(addrJson, "proxyInitCode", initCode);
         string memory serialized = vm.serializeAddress(addrJson, "implementation", address(cowshed));
         vm.writeJson(serialized, "deploymentAddresses.json");
+        vm.stopBroadcast();
     }
 }