Add new sensors of Kostal Plenticore integration

[stegm]

Breaking change

Proposed change

This PR updates the underlying pykoplenti library to a newer version with more sensors. Some of them are important to make the integration more usable for the Energy Dashboard (namely Energy to Grid). Please see also the PR of the documentation for this matter: home-assistant/home-assistant.io#29811.

The changes in the tests are mainly due to the fact that the model in the pykoplenti library now uses pydantic-based classes and the tests need to be adapted accordingly.

Changelog of pykoplenti

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: Adapt documentation of kostal plenticore to match changes in core. home-assistant.io#29811

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
• I have followed the perfect PR recommendations
• 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.

[jpbede]

Looks good. Thanks 👍

[edenhaus]

Thanks @stegm 👍

For the future, please split the dependency bump and adding new entities/features into two different PRs.