use yarn and upgrade deps

Author: malash

.eslintrc.js

@@ -1,25 +1,25 @@
 module.exports = {
-  parser: "@typescript-eslint/parser",
-  extends: ["airbnb-base", "plugin:prettier/recommended"],
-  plugins: ["@typescript-eslint"],
+  parser: '@typescript-eslint/parser',
+  extends: ['airbnb-base', 'plugin:prettier/recommended'],
+  plugins: ['@typescript-eslint'],
   settings: {
-    "import/parsers": {
-      "@typescript-eslint/parser": [".ts"]
+    'import/parsers': {
+      '@typescript-eslint/parser': ['.ts'],
     },
-    "import/resolver": {
+    'import/resolver': {
       node: {
-        extensions: [".js", ".ts"]
-      }
-    }
+        extensions: ['.js', '.ts'],
+      },
+    },
   },
   env: {
     node: true,
     browser: false,
-    jest: true
+    jest: true,
   },
   rules: {
-    "no-unused-vars": 0,
-    "no-restricted-syntax": 0,
-    "import/prefer-default-export": 0
-  }
+    'no-unused-vars': 0,
+    'no-restricted-syntax': 0,
+    'import/prefer-default-export': 0,
+  },
 };

jest.config.js

@@ -1,12 +1,12 @@
-const path = require("path");
+const path = require('path');
 
 module.exports = {
   verbose: true,
   collectCoverage: true,
-  testEnvironment: "node",
+  testEnvironment: 'node',
   transform: {
-    "\\.ts$": "ts-jest"
+    '\\.ts$': 'ts-jest',
   },
-  testMatch: ["**/src/**/__tests__/**/*.spec.[jt]s"],
-  moduleFileExtensions: ["ts", "js", "json", "node"]
+  testMatch: ['**/src/**/__tests__/**/*.spec.[jt]s'],
+  moduleFileExtensions: ['ts', 'js', 'json', 'node'],
 };