Add ZHA XZG firmware discovery

[xyzroe]

Proposed change

Add XZG Firmware ZeroConf to ZHA. Tested locally

Type of change

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

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• [x] The code change is tested and works locally.
• [x] Local tests pass. Your PR cannot be merged unless tests pass
• [x] There is no commented out code in this PR.
• [x] I have followed the development checklist
• [ ] I have followed the perfect PR recommendations
• [ ] The code has been formatted using Ruff (ruff format 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:

• [x] 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.
• [ ] For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.
• [ ] Untested files have been added to .coveragerc.

To help with the load of incoming pull requests:

• [ ] I have reviewed two other open pull requests in this repository.

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[home-assistant[bot]]

Hey there @dmulcahey, @adminiuga, @puddly, @thejulianjes, mind taking a look at this pull request as it has been labeled with an integration (zha) you are listed as a code owner for? Thanks!

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[Hedda]

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

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

@xyzroe suggest also submit PR to next branch of zha documentation for the home-assistant.io repository:

https://www.home-assistant.io/integrations/zha/#discovery-via-usb-or-zeroconf

https://github.com/home-assistant/home-assistant.io/blob/next/source/_integrations/zha.markdown

[puddly]

Is this firmware in use by any devices yet? If not, let's hold off on merging this PR because I would like to steer future TCP coordinators to use a general _zigbee.local. type. That way, you will not need to make a PR every time a new coordinator type comes out.

[xyzroe]

Some users have already updated their devices to this firmware. Everyone would like to use it already.
And of course it is possible to add general type, and users will quickly update. When this feature is expected?