Fix code coverage data generation

[d33bs]

Description

This PR fixes code coverage data generation for the Almanack (which wasn't generating coverage.xml files properly).

Closes #209

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• Content additions or updates (adds or updates content)
• Bug fix (fixes an issue).
• Enhancement (adds functionality).
• Breaking change (these changes would cause existing functionality to not work as expected).

Checklist

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[d33bs]

Closing as this appears to exhibit a GitHub Actions caching error. Replacing with #214