### Summary

When using the `ansible.builtin.assemble` module with `--diff`, the task fails with the following error:
> Unexpected failure during module execution: ActionBase._get_diff_data() missing 1 required positional argument: 'content'

`ansible-playbook -vvvv` says the relevant function call happens in [ansible/plugins/action/assemble.py, line 143](https://github.com/ansible/ansible/blob/6ebefaceb6cd0d4961776a94d63a71fc1fc28bc0/lib/ansible/plugins/action/assemble.py#L143).  
Note: on my local machine that's currently line 144; 143 is on the current devel branch.

The last known working version is 8.6.1


### Issue Type

Bug Report

### Component Name

ansible.builtin.assemble

### Ansible Version

```console
$ ansible --version
ansible [core 2.16.0]
  config file = None
  configured module search path = ['/Users/albalitz/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /opt/homebrew/Cellar/ansible/9.0.1/libexec/lib/python3.12/site-packages/ansible
  ansible collection location = /Users/albalitz/.ansible/collections:/usr/share/ansible/collections
  executable location = /opt/homebrew/bin/ansible
  python version = 3.12.0 (main, Oct  3 2023, 16:20:33) [Clang 14.0.3 (clang-1403.0.22.14.1)] (/opt/homebrew/Cellar/ansible/9.0.1/libexec/bin/python)
  jinja version = 3.1.2
  libyaml = True
```


### Configuration

```console
$ ansible-config dump --only-changed -t all
CONFIG_FILE() = None
EDITOR(env: EDITOR) = /usr/bin/vim
PAGER(env: PAGER) = less
```


### OS / Environment

This happens on my local machine running MacOS Sonoma 14.1.2 (Ansible installed via homebrew) as well as our CI system running in a `python:alpine`-based Docker environment with the same Ansible version as above (Ansible is installed via pip there and updated semi-automatically using renovatebot).

### Steps to Reproduce

This step fails with the error described above:
```yaml
- name: create concatenated file
  local_action:
    module: assemble
    remote_src: false
    src: files/some_files/
    dest: /tmp/concatenated_file
  no_log: true
  changed_when: false
  check_mode: no
  become: no
  run_once: true
```

The step works when `--diff` is removed from the `ansible-playbook` command.

### Expected Results

I expected the `assemble` step to run successfully and produce a concatenated file with `--diff` enabled but without printing the diff (due to `no_log: true` - I set that to `false` for debugging purposes to see the error message).

### Actual Results

```console
<localhost> ESTABLISH LOCAL CONNECTION FOR USER: albalitz
<localhost> EXEC /bin/sh -c 'echo ~albalitz && sleep 0'
<localhost> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /Users/albalitz/.ansible/tmp `"&& mkdir "` echo /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079 `" && echo ansible-tmp-1701782995.5552058-23181-40564253413079="` echo /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079 `" ) && sleep 0'
Using module file /opt/homebrew/Cellar/ansible/9.0.1/libexec/lib/python3.12/site-packages/ansible/modules/stat.py
<localhost> PUT /Users/albalitz/.ansible/tmp/ansible-local-23119muc1g04o/tmp8owc8yoz TO /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079/AnsiballZ_stat.py
<localhost> EXEC /bin/sh -c 'chmod u+x /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079/ /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079/AnsiballZ_stat.py && sleep 0'
<localhost> EXEC /bin/sh -c '/opt/homebrew/Cellar/ansible/9.0.1/libexec/bin/python /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079/AnsiballZ_stat.py && sleep 0'
<localhost> EXEC /bin/sh -c 'rm -f -r /Users/albalitz/.ansible/tmp/ansible-tmp-1701782995.5552058-23181-40564253413079/ > /dev/null 2>&1 && sleep 0'
The full traceback is:
Traceback (most recent call last):
  File "/opt/homebrew/Cellar/ansible/9.0.1/libexec/lib/python3.12/site-packages/ansible/executor/task_executor.py", line 165, in run
    res = self._execute()
          ^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/ansible/9.0.1/libexec/lib/python3.12/site-packages/ansible/executor/task_executor.py", line 641, in _execute
    result = self._handler.run(task_vars=vars_copy)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/ansible/9.0.1/libexec/lib/python3.12/site-packages/ansible/plugins/action/assemble.py", line 144, in run
    diff = self._get_diff_data(dest, path, task_vars)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: ActionBase._get_diff_data() missing 1 required positional argument: 'content'
fatal: [shorewall-0 -> localhost]: FAILED! => {}

MSG:

Unexpected failure during module execution: ActionBase._get_diff_data() missing 1 required positional argument: 'content'
```


### Code of Conduct

- [X] I agree to follow the Ansible Code of Conduct
'''
        This is the function which executes the low level shell command, which
        may be commands to create/remove directories for temporary files, or to
        run the module code or python directly when pipelining.
        :kwarg encoding_errors: If the value returned by the command isn't
            utf-8 then we have to figure out how to transform it to unicode.
            If the value is just going to be displayed to the user (or
            discarded) then the default of 'replace' is fine.  If the data is
            used as a key or is going to be written back out to a file
            verbatim, then this won't work.  May have to use some sort of
            replacement strategy (python3 could use surrogateescape)
        :kwarg chdir: cd into this directory before executing the command.
        '''
        display.debug("_low_level_execute_command(): starting")
        
        
        
        
        if chdir:
            display.debug("_low_level_execute_command(): changing cwd to %s for this command" % chdir)
            cmd = self._connection._shell.append_command('cd %s' % chdir, cmd)