Update coverage to 7.6.8

[cdce8p]

Proposed change

https://coverage.readthedocs.io/en/latest/changes.html#version-7-6-8-2024-11-23

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:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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  Updated by running python3 -m script.gen_requirements_all.
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