Fix import for WinRM version check

[lubinatien]

PyPI's package is named pywinrm.

The importlib.metadata.version("winrm") call raises PackageNotFoundError which isn't caught by except ImportError, crashing the block and leaving winrm undefined despite being importable.

What does this PR do?

What issues does this PR fix or reference?

Fixes salt-cloud with Windows minions using Winrm

Previous Behavior

salt-cloud crashes when using winrm to deploy windows minion.

New Behavior

salt-cloud deploys windows minion correctly.

Merge requirements satisfied?

[NOTICE] Bug fixes or features added to Salt require tests.

• Docs
• Changelog - https://docs.saltproject.io/en/master/topics/development/changelog.html
• Tests written/updated: Kind of:

% cat test.py
import salt.utils.versions

# Set the minimum version of PyWinrm.
WINRM_MIN_VER = "0.3.0"

try:
    import importlib
    import importlib.metadata

    # Verify WinRM 0.3.0 or greater

    version = importlib.metadata.version("winrm")
    if not salt.utils.versions.compare(version, ">=", WINRM_MIN_VER):
        HAS_WINRM = False
    else:
        HAS_WINRM = True

    import winrm
    from winrm.exceptions import WinRMTransportError

except ImportError:
    HAS_WINRM = False

print(HAS_WINRM)
% /opt/saltstack/salt/bin/python3.10 test.py
False
% sed -i 's/importlib\.metadata\.version("winrm")/importlib.metadata.version("pywinrm")/' test.py
% /opt/saltstack/salt/bin/python3.10 test.py
True

Commits signed with GPG?

Yes/No

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[twangboy]

Could we get a changelog and a test for this. Maybe just verify that "HAS_WINRM" is true.

[lubinatien]

Yes of course, I didn't include it as it's a partial rollback to what is was before:
1bb7749
I won't be able to do it now, but will provide you with a test before tomorrow!

[lubinatien]

Ok, hope this will be enough, I won't have time to create a proper test but updated the ticket with what I could.
Thanks a lot!