input: Write a Python function to convert the employees dictionary to a list of dictionaries.
  assert convert_employees_dict_to_list(employees) == [
   {'name': 'John Smith', 'age': 30, 'salary': 5000},
   {'name': 'Jane Doe', 'age': 28, 'salary': 8000},
   {'name': 'Jack Black', 'age': 25, 'salary': 3000}
  ]
  assert convert_employees_dict_to_list({'Alice': {'age': 22, 'salary': 4000}}) == [
   {'name': 'Alice', 'age': 22, 'salary': 4000}
  ]
  assert convert_employees_dict_to_list({}) == []
output: def convert_employees_dict_to_list(employees):
      return [{'name': name, 'age': details['age'], 'salary': details['salary']} for name, details in employees.items()]