Remove aiofiles pin

[silamon]

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This custom integration pins aiofiles to 0.8.0 which has no support for Python 3.12. Since this version gets installed when users install this custom integration, it can cause some official integrations to break. I've removed the requirement since your codebase does not longer have references to that dependency.

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.
• [ ] There is no commented out code in this PR.
• [ ] I have followed the contribution guidelines
  • [ ] This PR is for a custom-card or documentation change and therefore directed to the main branch.
  • [ ] This PR is for a official card or any other directly to the integration related change and therefore directed to the release branch.