Bump python-ecobee-api to 0.4.2

[pike00]

Proposed change

Bump python-ecobee-api from 0.4.1 to 0.4.2 and switch MFA handling from err.args[0] to the new err.challenge property.

Library PR (pending merge + PyPI publish): nkgilley/python-ecobee-api#89

• PyPI: https://pypi.org/project/python-ecobee-api/0.4.2/ (not published yet — this PR is draft until it is)
• Diff: nkgilley/python-ecobee-api@0.4.1...pike00:feat/mfa-challenge-property

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

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[Copilot]

Pull request overview

Updates Ecobee’s dependency and adopts its named MFA challenge property.

Changes:

• Bumps python-ecobee-api to 0.4.2.
• Uses err.challenge for MFA flows.
• Version 0.4.2 is not yet published.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
requirements_all.txt	Updates generated dependency pin.
homeassistant/components/ecobee/manifest.json	Updates integration dependency.
homeassistant/components/ecobee/config_flow.py	Adopts the new MFA challenge property.