Bump pypck to 0.9.7

[alengwenus]

Proposed change

Fixes wrong value responses for old LCN modules which resulted in turning the corresponding sensors to unavailable state.

A dependency upgrade is necessary:
Release notes: https://github.com/alengwenus/pypck/releases
Code changes: https://github.com/alengwenus/pypck/compare/0.9.5..0.9.7

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 LCN sensor entities for old modules are "unavailable" #158059
• This PR is related to issue:
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• 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 Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

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.

To help with the load of incoming pull requests:

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

[Copilot]

Pull request overview

This PR fixes a bug where LCN sensors would incorrectly become unavailable when receiving variable responses from older LCN modules. The fix ensures that valid variable data is processed even when returned from the status request, rather than only being processed through separate input events.

Key changes:

• Captures the result from request_status_variable() to process the returned data
• Calls input_received() with the result when data is available
• Updates the pypck dependency from 0.9.5 to 0.9.6 to support the fix

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
homeassistant/components/lcn/sensor.py	Modified async_update() to capture and process variable response data directly
homeassistant/components/lcn/manifest.json	Updated pypck requirement to version 0.9.6
requirements_all.txt	Updated pypck dependency version
requirements_test_all.txt	Updated pypck test dependency version

[edenhaus]

Thanks @alengwenus 👍