Update eslint config

Author: tshemsedinov

.eslintrc.json

@@ -6,7 +6,10 @@
  },
  "extends": "eslint:recommended",
  "parserOptions": {
- "ecmaVersion": 2018
+ "ecmaVersion": 2020
+ },
+ "globals": {
+ "BigInt": true
  },
  "rules": {
  "indent": [
@@ -25,7 +28,6 @@
  "error",
  "always"
  ],
- "no-console": "off",
  "no-loop-func": [
  "error"
  ],