Fix EventableCluster not listening to AttributeUpdatedEvent

[TheJulianJES]

Proposed change

This fixes an issue where the EventableCluster does not listen to AttributeUpdatedEvent events.

For example, if a Tuya datapoint is remapped to a "ZCL" attribute, which is updated using update_attribute, it'll never fire AttributeReportedEvent, only AttributeUpdatedEvent. So, the zha_event for the attribute update is never fired.

Additional information

Should hopefully address:

• After update core from 2026.1.3 to 2026.2.2 issue with Zigbee TS0021 buttons home-assistant/core#163118

See related quirk:

zha-device-handlers/zhaquirks/tuya/ts0021.py

Lines 36 to 53 in 40b41de

	class TuyaCustomCluster(TuyaNewManufCluster, EventableCluster):
	"""Tuya Custom Cluster for mapping data points to attributes."""
	dp_to_attribute: dict[int, DPToAttributeMapping] = {
	1: DPToAttributeMapping(
	TuyaNewManufCluster.ep_attribute,
	ATTR_BTN_1_PRESSED,
	),
	2: DPToAttributeMapping(
	TuyaNewManufCluster.ep_attribute,
	ATTR_BTN_2_PRESSED,
	),
	}
	data_point_handlers = {
	1: "_dp_2_attr_update",
	2: "_dp_2_attr_update",
	}

It would probably make sense to add decent test coverage for EventableCluster in another PR.
Maybe even utilizing the Tuya datapoint remapping, or just have update_attribute be called there.

Device diagnostics

Possibly in linked HA issue or already in ZHA diagnostics.

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 92.32%. Comparing base (40b41de) to head (34713c4).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #4763   +/-   ##
=======================================
  Coverage   92.32%   92.32%           
=======================================
  Files         371      371           
  Lines       12190    12191    +1     
=======================================
+ Hits        11254    11255    +1     
  Misses        936      936           

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