Update A. O. Smith integration to reflect upstream API changes

[bdr99]

Breaking change

A. O. Smith now provides the hot water status as a percentage rather than low, medium, or high. The hot water status entity has been updated accordingly.

Proposed change

Update the A. O. Smith integration to reflect new changes to the upstream API.

https://github.com/bdr99/py-aosmith/compare/1.0.8...1.0.10

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)
• [ ] Deprecation (breaking change to happen in the future)
• [x] 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: https://github.com/bdr99/py-aosmith/issues/3
• Link to documentation pull request: https://github.com/home-assistant/home-assistant.io/pull/35091

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
• [x] I have followed the perfect PR recommendations
• [x] The code has been formatted using Ruff (ruff format homeassistant tests)
• [x] Tests have been added to verify that the new code works.

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

• [x] 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.
• [x] New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• [x] For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

To help with the load of incoming pull requests:

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

[bdr99]

I think the test failures are unrelated.

[joostlek]

Does this break current installations?

[bdr99]

Only if they created an automation based on the hot water status entity. I marked it as a breaking change to be on the safe side.

[joostlek]

No but does the current integration stop working?

[bdr99]

The current integration is pointed to an old A. O. Smith API that still provides the hot water status value as low, medium, or high. But that server seems to be no longer maintained and has been having outages, sometimes for days at a time. So, if we don't make this change, the integration will still work but the server connection will be unstable.