Allow loading UniFi entities on config options change

[Kane610]

Breaking change

Proposed change

Builds on #88571
Unblocks #84942
During the refactoring of UniFi I didn't take care of how to trigger loading of entities based on changed config options. This PR brings this functionality back.

PR consists of two parts

1. Controller and entity keep registry of loaded objects
2. Fix tests to once again validate loading entities on changed options work

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)
• 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

• 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.
• 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.

[starkillerOG]

Looks good to me :)
Took me a while to figure out how it works ;)

[Kane610]

Looks good to me :)
Took me a while to figure out how it works ;)

Thanks! Well yes, lots of mechanisms going on :)

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

Learn more about our pull request process.

[frenck]

Thanks, @Kane610

[Kane610]

Thank you @frenck 🎉