fix: remove typesVersions from package.json

[achingbrain]

We have typesVersions to allow deep requires from these modules, but they cause incorrect paths to be detected by tsc (see #214).

Since #161 we control exports using the exports map, and we only export the root from each module so deep requires are disallowed and consequently typesVersions isn't necessary.

Since it's causing problems and we don't need it, remove it. We can revisit once we publish ESM-only but right now this fixes up the types tsc generates.

Fixes #214

[github-actions[bot]]

:tada: This PR is included in version ipfs-unixfs-v6.0.9 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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[github-actions[bot]]

:tada: This PR is included in version ipfs-unixfs-importer-v9.0.10 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket:

[github-actions[bot]]

:tada: This PR is included in version ipfs-unixfs-exporter-v7.0.11 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: