Fix ozw color temp

[tradiuz]

Proposed change

This PR fixes a potential overflow/underflow situation where if you set a color temp outside the light's range, the code will generate invalid color codes. It expands on @firstof9 's work, and adds testing to check and verify bad color temps don't generate bad output. I apologize about creating duplicate PRs, it took a couple tries to get the environment set up correctly.

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 #
• This PR is related to issue: This continues @firstof9 's work (PR#37636) on the ozw integration and rgb lights
• 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.

The integration reached or maintains the following Integration Quality Scale:

• No score or internal
• 🥈 Silver
• 🥇 Gold
• 🏆 Platinum

[probot-home-assistant]

Hey there @cgarwood, @marcelveldt, @MartinHjelmare, mind taking a look at this pull request as its been labeled with an integration (ozw) you are listed as a codeowner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[MartinHjelmare]

Looks good!

[MartinHjelmare]

Not sure why some CI checks were skipped. Maybe try rebasing the PR to have the CI run again.