Update elgato to 3.0.0

[frenck]

Proposed change

Upgrades elgato to 3.0.0
Release notes: https://github.com/frenck/python-elgato/releases/tag/v3.0.0

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 #
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• 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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  Updated by running python3 -m script.gen_requirements_all.
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