[BUG] [3007.1] winrepo: win_pkg is missing pkg.list_repo_pkgs

[dafyddj]

Description
In 3007.0 and newer, modules/win_pkg.py is missing the function pkg.list_repo_pkgs which is required when running with test=True.
This is related to the introduction of the feature in #63986.

Setup
(Please provide relevant configs and/or SLS files (be sure to remove sensitive info. There is no general set-up of Salt.)

Master or masterless minion needs to be set-up for Winrepo (winrepo.update_git_repos has been called).

Please be as specific as possible and give set-up details.

• on-prem machine
• VM (Virtualbox, KVM, etc. please specify)
• VM running on a cloud service, please be explicit and add details
• container (Kubernetes, Docker, containerd, etc. please specify)
• or a combination, please be explicit
• jails if it is FreeBSD
• classic packaging
• onedir packaging
• used bootstrap to install

Steps to Reproduce the behavior
(Include debug logs if possible and relevant)
Examples:

salt <minion> state.single pkg.installed putty test=True

or

salt-call --local state.single pkg.latest putty test=True

results in:

[ERROR   ] An exception occurred in this state: Traceback (most recent call last):
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\state.py", line 2428, in call
    ret = self.states[cdata["full"]](
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\loader\lazy.py", line 160, in __call__
    ret = self.loader.run(run_func, *args, **kwargs)
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\loader\lazy.py", line 1269, in run
    return self._last_context.run(self._run_as, _func_or_method, *args, **kwargs)
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\loader\lazy.py", line 1284, in _run_as
    return _func_or_method(*args, **kwargs)
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\loader\lazy.py", line 1317, in wrapper
    return f(*args, **kwargs)
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\states\pkg.py", line 2815, in latest
    changes = _get_installable_versions(targets, cur)
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\states\pkg.py", line 1033, in _get_installable_versions
    explicit_versions = __salt__["pkg.list_repo_pkgs"](*explicit_targets)
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\loader\context.py", line 86, in __getitem__
    return self.value()[item]
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\loader\lazy.py", line 384, in __getitem__
    _ = super().__getitem__(item)  # try to get the item from the dictionary
  File "C:\Program Files\Salt Project\Salt\Lib\site-packages\salt\utils\lazy.py", line 104, in __getitem__
    raise KeyError(key)
KeyError: 'pkg.list_repo_pkgs'

Expected behavior

No raised exception and result of the test state application to be displayed.

Screenshots
If applicable, add screenshots to help explain your problem.

Versions Report

salt --versions-report

(Provided by running salt --versions-report. Please also mention any differences in master/minion versions.)

Salt Version:
          Salt: 3007.1

Python Version:
        Python: 3.10.14 (heads/main:c1ec015, Apr  3 2024, 21:36:37) [MSC v.1938 64 bit (AMD64)]

Dependency Versions:
          cffi: 1.16.0
      cherrypy: 18.8.0
      dateutil: 2.8.2
     docker-py: Not Installed
         gitdb: 4.0.10
     gitpython: 3.1.43
        Jinja2: 3.1.4
       libgit2: Not Installed
  looseversion: 1.3.0
      M2Crypto: Not Installed
          Mako: Not Installed
       msgpack: 1.0.7
  msgpack-pure: Not Installed
  mysql-python: Not Installed
     packaging: 23.1
     pycparser: 2.21
      pycrypto: Not Installed
  pycryptodome: 3.19.1
        pygit2: Not Installed
  python-gnupg: 0.5.2
        PyYAML: 6.0.1
         PyZMQ: 25.1.2
        relenv: 0.16.0
         smmap: 5.0.1
       timelib: 0.3.0
       Tornado: 6.3.3
           ZMQ: 4.3.4

Salt Package Information:
  Package Type: onedir

System Versions:
          dist:
        locale: utf-8
       machine: AMD64
       release: 10
        system: Windows
       version: 10 10.0.26100 SP0 Multiprocessor Free

Additional context
Ref. @twangboy