Add Namron 4512772 8-button Zigbee remote

[MAFL74]

Proposed change

Add custom ZHA quirk for Namron 4512772 8-button Zigbee switch.

• Enables full support for all 8 channels with short press, long hold (for dimming), and long release (for stopping dimming).
• Exposes all endpoints as channels (channel_1 to channel_8).
• This quirk is tested with Home Assistant ZHA and works together with the included Home Assistant automation blueprint.

---

Additional information

• Device model: Namron 4512772 (8-button Zigbee switch)
• Manufacturer: NAMRON AS
• The quirk exposes all button events in a way that is easy to use with Home Assistant automations/blueprints.
• The blueprint enables any user to configure all short/long press actions for each channel.
• Tested and confirmed working in Home Assistant 2024.7.x (July release).
• Full README and blueprint are available at: https://github.com/MAFL74/namron_4512772_zha

---

Checklist

• The changes are tested and work correctly
• pre-commit checks pass / the code has been formatted using Black
• Tests have been added to verify that the new code works

[MAFL74]

Updated code to address ruff/PEP8 feedback from CI.

• Added docstrings
• Fixed imports and punctuation
• Reformatted for compliance

[MAFL74]

Updated code to address ruff/PEP8 feedback from CI.

• Added docstrings
• Fixed imports and punctuation
• Reformatted for compliance

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.30%. Comparing base (a24ba30) to head (abf2b65).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #4185   +/-   ##
=======================================
  Coverage   91.30%   91.30%           
=======================================
  Files         340      342    +2     
  Lines       10993    11001    +8     
=======================================
+ Hits        10037    10045    +8     
  Misses        956      956           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[puddly]

Thanks for the PR! We're migrating all new quirks to the much-simplified v2 interface. Since your quirk just adds automation triggers, you can use this very similar quirk as a template and strip off all of the matching code present in this v1 quirk: https://github.com/zigpy/zha-device-handlers/blob/be5f15c312e2243529810803f032debde2b58ae6/zhaquirks/legrand/wirelessswitch.py