feat!: Update TypeScript Rules and Config to support ESLint v9 (#338)

* update deps

* remove deleted rule

* update config for flat

* update snapshot

* delete unnecessary dummy files

* feat!: Update Node.js and TypeScript version requirement

* update deps

configs/flat/typescript.mjs

@@ -1,38 +1,34 @@
-// @ts-check
-import typescriptEslint from '@typescript-eslint/eslint-plugin';
-import typescriptEslintParser from '@typescript-eslint/parser';
+import tseslint from 'typescript-eslint';
 import typescriptRuleSetBase from '../../rules/typescript.js';
 
 const typescriptRuleSet = {
   plugins: {
-    '@typescript-eslint': typescriptEslint,
-  },
-  rules: {
-    ...typescriptEslint.configs['eslint-recommended'].overrides?.[0].rules,
-    ...typescriptEslint.configs['strict-type-checked'].rules,
-    ...typescriptEslint.configs['stylistic-type-checked'].rules,
-    ...typescriptRuleSetBase.rules,
+    '@typescript-eslint': tseslint.plugin,
   },
+  extends: [
+    ...tseslint.configs.strictTypeChecked,
+    ...tseslint.configs.stylisticTypeChecked,
+  ],
+  rules: typescriptRuleSetBase.rules,
 };
 
-export default [
-  {
-    files: ['**/*.@(ts|tsx|cts|mts)'],
+export default tseslint.config({
+  files: ['**/*.@(ts|tsx|cts|mts)'],
 
-    languageOptions: {
-      parser: typescriptEslintParser,
-      parserOptions: {
-        project: true,
-      },
+  languageOptions: {
+    parser: tseslint.parser,
+    parserOptions: {
+      projectService: true,
+      tsconfigRootDir: process.env.TSCONFIG_ROOT_DIR ?? import.meta.dirname,
     },
+  },
 
-    settings: {
-      // https://github.com/import-js/eslint-plugin-import?tab=readme-ov-file#importparsers
-      'import/parsers': {
-        '@typescript-eslint/parser': ['.ts', '.tsx', '.cts', '.mts'],
-      },
+  settings: {
+    // https://github.com/import-js/eslint-plugin-import?tab=readme-ov-file#importparsers
+    'import/parsers': {
+      '@typescript-eslint/parser': ['.ts', '.tsx', '.cts', '.mts'],
     },
-
-    ...typescriptRuleSet,
   },
-];
+
+  ...typescriptRuleSet,
+});