Fix `files` directory globs

[duncanmmacleod]

This PR fixes #220 by updating directory entries in files: to not use a wildcard (which is non-recursive), instead just specify the directory (which is recursive).

Checklist

• [x] Used a personal fork of the feedstock to propose changes
• [x] Bumped the build number (if the version is unchanged)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

[conda-forge-webservices[bot]]

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I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[github-actions[bot]]

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I considered the following status checks when analyzing this PR:

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Thus the PR was passing and merged! Have a great day!