### Summary

User module is not idempotent when update_password: always parameter set in the playbook for macOS 

Result is always showing changed if use already present and no changes in the password . 



### Issue Type

Bug Report

### Component Name

user

### Ansible Version

```console
ansible 2.9.21
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/navarihtak/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/navarihtak/.local/lib/python3.8/site-packages/ansible
  executable location = /home/navarihtak/.local/bin/ansible
  python version = 3.8.10 (default, Nov 14 2022, 12:59:47) [GCC 9.4.0]
```


### Configuration

```console
# if using a version older than ansible-core 2.12 you should omit the '-t all'
$ ansible-config dump --only-changed -t all
$ ansible-config dump --only-changed
DEFAULT_VAULT_PASSWORD_FILE(env: ANSIBLE_VAULT_PASSWORD_FILE) = /home/navarihtak/.ansible/.vault_pass
HOST_KEY_CHECKING(env: ANSIBLE_HOST_KEY_CHECKING) = False
$
```


### OS / Environment

All MacOS version 

### Steps to Reproduce

```yaml
      - name: Add user for Darwin
        user:
          name: "{{ username }}"
          comment: "{{ username }}"
          shell: "/bin/bash"
          group: "{{ user_group }}"
          password: "{{ user_pass }}"
          update_password: always
          state: present
        when: ansible_os_family == 'Darwin'
        become: yes
```

### Expected Results

It should be idempotent. Result status should shows ok if user is already exist and password is not changed. 

### Actual Results

```console
Always shows result status is changed if user is already exist and password is not changed.
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
return (rc, _out, _err)
        (rc, _out, _err) = self._change_user_password()
        out += _out
        err += _err
        self._update_system_user()
        
        
        if self.groups:
            (rc, _out, _err, changed) = self._modify_group()
            out += _out
            err += _err
        return (rc, out, err)
    def modify_user(self):
        changed = None
        out = ''
        err = ''
        if self.group:
            self._make_group_numerical()
        for field in self.fields:
            if field[0] in self.__dict__ and self.__dict__[field[0]]:
                current = self._get_user_property(field[1])
                if current is None or current != to_text(self.__dict__[field[0]]):
                    cmd = self._get_dscl()
                    cmd += ['-create', '/Users/%s' % self.name, field[1], self.__dict__[field[0]]]
                    (rc, _out, _err) = self.execute_command(cmd)
                    if rc != 0:
                        self.module.fail_json(
                            msg='Cannot update property "%s" for user "%s".'
                                % (field[0], self.name), err=err, out=out, rc=rc)
                    changed = rc