fix: properly resolve types when using TypeScript's latest module resolution strategy

[angeloashmore]

Types of changes

• Chore (a non-breaking change which is related to package maintenance)
• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

This PR fixes the bug described in https://github.com/prismicio/prismic-typescript-template/pull/27

Checklist:

• My change requires an update to the official documentation.
• All TSDoc comments are up-to-date and new ones have been added where necessary.
• All new and existing tests are passing.

[codecov-commenter]

Codecov Report

Merging #300 (9bd4ce8) into master (92b1701) will not change coverage.
The diff coverage is n/a.

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  Branches      303      303           
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  Misses          3        3