Add Ecovacs Deebot to Matter fixtures

[lboue]

Proposed change

Add Ecovacs Deebot to Matter fixtures
This is to diversify testing with several different brands.

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:
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• 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.
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To help with the load of incoming pull requests:

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

[home-assistant]

Hey there @home-assistant/matter, mind taking a look at this pull request as it has been labeled with an integration (matter) you are listed as a code owner for? Thanks!

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[Copilot]

Pull Request Overview

This PR adds test coverage for the Ecovacs Deebot vacuum cleaner device to the Matter integration. The changes introduce a new device fixture and corresponding test snapshots to ensure proper entity creation and state handling.

• Adds a new test fixture file ecovacs_deebot.json with device configuration data
• Adds test snapshots for vacuum, sensor, select, and button entities
• Registers the new fixture in the parameterized test configuration

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/components/matter/conftest.py	Adds "ecovacs_deebot" to the parameterized test fixture list
tests/components/matter/fixtures/nodes/ecovacs_deebot.json	New test fixture containing device attributes and configuration for the Ecovacs Deebot vacuum
tests/components/matter/snapshots/test_vacuum.ambr	Adds snapshot tests for vacuum entity registration and state
tests/components/matter/snapshots/test_sensor.ambr	Adds snapshot tests for battery, operational state, and phase sensors
tests/components/matter/snapshots/test_select.ambr	Adds snapshot test for clean mode selection entity
tests/components/matter/snapshots/test_button.ambr	Adds snapshot test for identify button entity