Restore some sensors that were removed from nut

[bdraco]

Proposed change

The following sensors were removed in 0.108 as they were provided by the device registry instead. Since there currently is no good way to display these in a card, restore the sensors.

• ups.model
• ups.mfr
• ups.mfr.date
• ups.serial
• ups.vendorid
• ups.productid
• ups.firmware
• ups.firmware.aux

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example entry for configuration.yaml:

# Example configuration.yaml

Additional information

• This PR fixes or closes issue: fixes Please do not remove ups.model from Nut in future versions. #33846
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

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[dshokouhi]

I think a custom card may be required to display that data. ZHA had a similar issue where some data was only found in the UI and they created a ZHA network card that pulls in that data. I wonder if that should be done here? https://github.com/dmulcahey/zha-network-card IIRC they were asked to remove the zha entities that housed this data.

[balloob]

We shouldn't add this. Let me instead add a new entity row where people can decide themselves what text to show, so they can add it back manually. It's a static value anyway.

[balloob]

Opened home-assistant/frontend#5516 instead.