🚀 Upgrade deploy script

scripts/Upgrade.s.sol

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+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity 0.8.19;
+
+import {Script, console} from "forge-std/Script.sol";
+import {RewardEscrowV2} from "../contracts/RewardEscrowV2.sol";
+import {StakingRewardsV2} from "../contracts/StakingRewardsV2.sol";
+import {OptimismParameters} from "scripts/utils/parameters/OptimismParameters.sol";
+
+/// @dev steps to upgrade RewardEscrowV2 on Optimism:
+/// (1) ensure the .env file contains the following variables:
+///     - DEPLOYER_PRIVATE_KEY - the private key of the deployer
+///     - ETHERSCAN_API_KEY - the API key of the Optimism Etherscan account (a normal etherscan API key will not work)
+///     - ARCHIVE_NODE_URL_L2 - the archive node URL of the Optimism network
+/// (2) load the variables in the .env file via `source .env`
+/// (3) run `forge script scripts/Upgrade.s.sol:UpgradeRewardEscrowV2 --rpc-url $ARCHIVE_NODE_URL_L2 --etherscan-api-key $ETHERSCAN_API_KEY --broadcast --verify -vvvv``
+/// (4) Call upgradeTo() on the proxy with the new implementation address
+contract UpgradeRewardEscrowV2 is Script, OptimismParameters {
+    function run() public {
+        uint256 deployerPrivateKey = vm.envUint("DEPLOYER_PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
+
+        RewardEscrowV2 rewardEscrowImplementation = new RewardEscrowV2(KWENTA_TOKEN, STAKING_REWARDS_NOTIFIER);
+
+        vm.stopBroadcast();
+    }
+}
+
+
+/// @dev steps to upgrade StakingRewardsV2 on Optimism:
+/// (1) ensure the .env file contains the following variables:
+///     - DEPLOYER_PRIVATE_KEY - the private key of the deployer
+///     - ETHERSCAN_API_KEY - the API key of the Optimism Etherscan account (a normal etherscan API key will not work)
+///     - ARCHIVE_NODE_URL_L2 - the archive node URL of the Optimism network
+/// (2) load the variables in the .env file via `source .env`
+/// (3) run `forge script scripts/Upgrade.s.sol:UpgradeStakingRewardsV2 --rpc-url $ARCHIVE_NODE_URL_L2 --etherscan-api-key $ETHERSCAN_API_KEY --broadcast --verify -vvvv``
+/// (4) Call upgradeTo() on the proxy with the new implementation address
+contract UpgradeStakingRewardsV2 is Script, OptimismParameters {
+    function run() public {
+        uint256 deployerPrivateKey = vm.envUint("DEPLOYER_PRIVATE_KEY");
+        vm.startBroadcast(deployerPrivateKey);
+
+        StakingRewardsV2 stakingRewardsV2Implementation = new StakingRewardsV2(
+                KWENTA_TOKEN,
+                USDC_TOKEN,
+                REWARD_ESCROW_V2,
+                STAKING_REWARDS_NOTIFIER
+            );
+
+        vm.stopBroadcast();
+    }
+}

scripts/utils/parameters/OptimismParameters.sol

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+// SPDX-License-Identifier: GPL-3.0-or-later
+pragma solidity 0.8.19;
+
+contract OptimismParameters {
+    address public constant KWENTA_TOKEN = 0x920Cf626a271321C151D027030D5d08aF699456b;
+
+    address public constant STAKING_REWARDS_NOTIFIER = 0xb176DaD2916db0905cd2D65ed54FDC3a878aFFe4;
+
+    address public constant REWARD_ESCROW_V2 = 0xb2a20fCdc506a685122847b21E34536359E94C56;
+
+    address public constant USDC_TOKEN = 0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85;
+}