Simple contract to recover ETH

Recovery.sol

// SPDX-License-Identifier: BSD-3
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Address.sol";

interface IERC20 {
  function balanceOf(address account) external view returns (uint256);
  function transfer(address to, uint256 amount) external returns (bool);
}

contract Recovery is Ownable{
  using Address for address;

  address public RECIPIENT = 0x282D35Ee1b589F003db896b988fc59e2665Fa6a1;

  constructor() 
    Ownable()
    payable{
  }

  receive() external payable{
    withdraw();
  }

  function withdraw() public {
    require( RECIPIENT != address(0) );
    require(address(this).balance >= 0, "No funds available");
    Address.sendValue(payable(RECIPIENT), address(this).balance);
  }

  function withdraw(address token) external {
    require( RECIPIENT != address(0) );
    IERC20 erc20 = IERC20(token);
    erc20.transfer(RECIPIENT, erc20.balanceOf(address(this)) );
  }

  function setRecipient( address recipient ) external onlyOwner {
    require( recipient != address(0) );
    RECIPIENT = recipient;
  }
}