Upgrade elgato to 2.1.1

[frenck]

Proposed change

Upgrades elgato to v2.1.1.

Release notes: https://github.com/frenck/python-elgato/releases/tag/v2.1.1

It addresses a bug, where some Elgato LED strips don't return the powerOnTemperature in their settings response.

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)
• 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:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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