ether.js v6 migration

.eslintrc.json

@@ -1,11 +1,8 @@
 {
- "extends": [
- "eslint:recommended",
- "prettier"
- ],
+ "extends": ["eslint:recommended", "prettier"],
  "env": {
  "node": true,
- "es6": true,
+ "es2020": true,
  "commonjs": true,
  "mocha": true
  },
@@ -17,7 +14,8 @@
  "no-empty": "off",
  "no-only-tests/no-only-tests": "error"
  },
- "plugins": [
- "no-only-tests"
- ]
+ "plugins": ["no-only-tests"],
+ "globals": {
+ "BigInt": true
+ }
 }

contracts/protocol/clients/voucher/BosonVoucher.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma solidity 0.8.18;
+
 import "../../../domain/BosonConstants.sol";
 import { ERC721Upgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
 import { IERC721Upgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
@@ -296,11 +297,6 @@ contract BosonVoucherBase is IBosonVoucher, BeaconClientBase, OwnableUpgradeable
  // End should be greater than start
  require(end > start, NOTHING_TO_BURN);
 
- // If amount to burn is more than maxPremintedVouchers, burn only maxPremintedVouchers
- if (end > start + maxPremintedVouchers) {
- end = start + maxPremintedVouchers;
- }
-
  // Burn the range
  address rangeOwner = range.owner;
  uint256 burned;