migrate Lido ARM to the new relayer

Author: sparrowDom

script/deploy/mainnet/029_SetTalosKMSOperatorScript.s.sol

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.23;
+
+// Contracts
+import {Mainnet} from "contracts/utils/Addresses.sol";
+
+// Deployment
+import {AbstractDeployScript} from "script/deploy/helpers/AbstractDeployScript.s.sol";
+import {GovHelper, GovProposal} from "script/deploy/helpers/GovHelper.sol";
+
+/// @notice Migrates the operator of LidoARM and EtherFiARM (both owned by the
+/// mainnet Timelock) from the ARM Operations Defender relayer to the new Talos
+/// KMS signer. setOperator is onlyOwner on OwnableOperable, so this routes
+/// through a GovernorSix -> Timelock proposal.
+contract $029_SetTalosKMSOperatorScript is AbstractDeployScript("029_SetTalosKMSOperatorScript") {
+    using GovHelper for GovProposal;
+
+    function _buildGovernanceProposal() internal override {
+        govProposal.setDescription("Migrate LidoARM and EtherFiARM operator to the new Talos KMS signer");
+
+        govProposal.action(
+            resolver.resolve("LIDO_ARM"), "setOperator(address)", abi.encode(Mainnet.TALOS_KMS_RELAYER)
+        );
+
+        govProposal.action(
+            resolver.resolve("ETHER_FI_ARM"), "setOperator(address)", abi.encode(Mainnet.TALOS_KMS_RELAYER)
+        );
+    }
+}

src/contracts/utils/Addresses.sol

@@ -20,6 +20,7 @@ library Mainnet {
     address public constant ARM_MULTISIG = 0xC8F2cF4742C86295653f893214725813B16f7410;
     address public constant OETH_RELAYER = 0x4b91827516f79d6F6a1F292eD99671663b09169a;
     address public constant ARM_RELAYER = 0x39878253374355DBcc15C86458F084fb6f2d6DE7;
+    address public constant TALOS_KMS_RELAYER = 0x739212d5bAfE6AAC8Be49a60B7d003bD41DBf38b;
     address public constant BUYBACK_OPERATOR = 0xBB077E716A5f1F1B63ed5244eBFf5214E50fec8c;
 
     // Tokens