Add EGLO Smart Switch Connect-Z quirk

[SimonIT]

Proposed change

I'm trying to create quirk for the EGLO Smart Switch Connect-Z. Unfortunately, I could only get the toggle/on-off button to work. I couldn't get the two dimming buttons to work. Can anyone help me? I made a Post on Discord, but nobody helped me there. The events for the dimming buttons are listed below.

Fixes #4512

Additional information

event_type: zha_event
data:
  device_ieee: a4:c1:38:ee:ab:32:76:81
  device_id: 82539657af7e1302ab1cc1cf0f27158b
  unique_id: a4:c1:38:ee:ab:32:76:81:1:0x0008
  endpoint_id: 1
  cluster_id: 8
  command: step_with_on_off
  args:
    - 0
    - 36
    - 2
  params:
    step_mode: 0
    step_size: 36
    transition_time: 2
origin: LOCAL
time_fired: "2025-12-09T09:34:24.879177+00:00"
context:
  id: 01KC17CJ3FZQWFX85199EG7DDC
  parent_id: null
  user_id: null

event_type: zha_event
data:
  device_ieee: a4:c1:38:ee:ab:32:76:81
  device_id: 82539657af7e1302ab1cc1cf0f27158b
  unique_id: a4:c1:38:ee:ab:32:76:81:1:0x0008
  endpoint_id: 1
  cluster_id: 8
  command: step
  args:
    - 1
    - 36
    - 2
  params:
    step_mode: 1
    step_size: 36
    transition_time: 2
    options_mask: null
    options_override: null
origin: LOCAL
time_fired: "2025-12-09T09:34:23.422821+00:00"
context:
  id: 01KC17CGNYF8FYF3SJFMQXK3CX
  parent_id: null
  user_id: null

Device diagnostics

zha-01K4JWJ9DDNB1VAA06YSTX8NTT-AwoX ERCU_WS_Zm-78f38fbc50fada7344ce66d6fa1af518.json

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
• Device diagnostics data has been attached

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.28%. Comparing base (35d1fc1) to head (51257a9).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #4557   +/-   ##
=======================================
  Coverage   92.28%   92.28%           
=======================================
  Files         371      371           
  Lines       12158    12158           
=======================================
  Hits        11220    11220           
  Misses        938      938           

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