fix: Correct eslint config

Author: KamiKillertO

.eslintrc.cjs

@@ -1,10 +1,13 @@
+'use strict';
+
 module.exports = {
   root: true,
   parser: '@typescript-eslint/parser',
   plugins: ['@typescript-eslint'],
   parserOptions: {
     project: true,
     tsconfigRootDir: __dirname,
+    project: ['./tsconfig.eslint.json'],
   },
   extends: [
     'plugin:@typescript-eslint/recommended-type-checked',

test/runTest.ts

@@ -25,4 +25,4 @@ async function main() {
   }
 }
 
-main();
+void main();

tsconfig.eslint.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "types": ["@types/node"],
+    "noEmit": true,
+    "allowJs": true
+  },
+  "extends": "./tsconfig.json",
+  "include": ["src/**/*.ts", "test/**/*.ts", ".eslintrc.cjs"]
+}