### 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
if groups_need_mod:
                if self.local:
                    if self.append:
                        lgroupmod_add = set(groups).difference(current_groups)
                        lgroupmod_del = set()
                    else:
                        lgroupmod_add = set(groups).difference(current_groups)
                        lgroupmod_del = set(current_groups).difference(groups)
                else:
                    if self.append and not has_append:
                        cmd.append('-A')
                        cmd.append(','.join(group_diff))
                    else:
                        cmd.append('-G')
                        cmd.append(','.join(groups))
        if self.comment is not None and info[4] != self.comment:
            cmd.append('-c')
            cmd.append(self.comment)
        if self.home is not None and info[5] != self.home:
            cmd.append('-d')
            cmd.append(self.home)
            if self.move_home:
                cmd.append('-m')
        if self.shell is not None and info[6] != self.shell:
            cmd.append('-s')
            cmd.append(self.shell)
        if self.expires is not None:
            current_expires = int(self.user_password()[1])
            if self.expires < time.gmtime(0):
                if current_expires >= 0: