[CI] Format code

Author: github-actions[bot]

exercises/practice/error-handling/error-handling.spec.js

@@ -1,8 +1,6 @@
-
 import { describe, expect, it, jest } from '@jest/globals';
 import { processString } from './error-handling';
 
-
 describe('Error Handling', () => {
   it('returns uppercase if valid string', () => {
     expect(processString('hello')).toBe('HELLO');