input: Write a python function to validate email addresses using regex.
  assert validate_email("example@example.com") == True
  assert validate_email("invalid-email.com") == False
  assert validate_email("another.example@domain.co.uk") == True
output: import re
  
  def validate_email(email):
      pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$'
      return re.match(pattern, email) is not None