chore: migrate tooling configs to ESM format

eslint.config.mjs

@@ -0,0 +1,59 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import jest from 'eslint-plugin-jest';
+import prettier from 'eslint-config-prettier';
+
+export default tseslint.config(
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  prettier,
+  {
+    ignores: ['node_modules/**', 'dist/**', 'lib/**', 'coverage/**']
+  },
+  {
+    files: ['**/*.ts'],
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: 'module'
+    },
+    rules: {
+      '@typescript-eslint/no-require-imports': 'error',
+      '@typescript-eslint/no-non-null-assertion': 'off',
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-empty-function': 'off',
+      '@typescript-eslint/ban-ts-comment': [
+        'error',
+        {
+          'ts-ignore': 'allow-with-description'
+        }
+      ],
+      'no-console': 'error',
+      'yoda': 'error',
+      'prefer-const': [
+        'error',
+        {
+          destructuring: 'all'
+        }
+      ],
+      'no-control-regex': 'off',
+      'no-constant-condition': ['error', {checkLoops: false}]
+    }
+  },
+  {
+    files: ['**/*.test.ts', '**/*.spec.ts'],
+    plugins: {
+      jest
+    },
+    languageOptions: {
+      globals: jest.environments.globals.globals
+    },
+    rules: {
+      ...jest.configs.recommended.rules,
+      '@typescript-eslint/no-unused-vars': 'off',
+      'jest/no-standalone-expect': 'off',
+      'jest/no-conditional-expect': 'off',
+      'no-console': 'off'
+    }
+  }
+);