Set default transport and port settings for Napalm NXOS, if not set

[dmurphy18]

What does this PR do?

Sets the default transport and port values for Napalm NXOS if they are not set. Napalm itself does this, but Salt is not recognizing these defaults values correctly and setting None, without an appropriate default value.

What issues does this PR fix or reference?

Fixes: #59448

Previous Behavior

Would cause a traceback when attempting to use the url 'None://a.b.c.d' rather than 'https' or 'http'.

New Behavior

Correctly now sets a default transport of 'https' and appropriate port 443.

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

Commits signed with GPG?

Yes

Please review Salt's Contributing Guide for best practices.

See GitHub's page on GPG signing for more information about signing commits with GPG.

[dmurphy18]

re-run all

[dmurphy18]

The GitHub Actions Doc bot needs to be adjusted, since needs to allow for 'Usage example' present to stop the 'CLI Example' from generating an email.

Both have warning stating 'This function is not suitable for CLI usage' in the doc string, which is what the bot is complaining about

Bot is correct see #61566 for tech debt here

[dmurphy18]

re-run freebsd

[dmurphy18]

re-run centos-8

[dmurphy18]

re-run centos

[dmurphy18]

re-run centosstream-8

[dmurphy18]

re-run all

[dmurphy18]

re-run freebsd

[github-actions]

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Detected Issues (click me)

Check Known Missing Docstrings...........................................Failed
- hook id: invoke
- duration: 1.57s
- exit code: 1
The function 'netmiko_conn' on 'salt/modules/napalm_mod.py' does not have a 'CLI Example:' in it's docstring

The function 'pyeapi_conn' on 'salt/modules/napalm_mod.py' does not have a 'CLI Example:' in it's docstring

Found 2 errors

---

Thanks again!