fix: update no-unused-vars rule in ESLint configuration

Author: Ho-s

eslint.config.mjs

@@ -48,6 +48,10 @@ export default [
       '@typescript-eslint/explicit-function-return-type': 'off',
       '@typescript-eslint/explicit-module-boundary-types': 'off',
       '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
+      ],
     },
   },
 ];