Bump napi from 3.11.0 to 3.12.1 in /lib

Bumps [napi](https://github.com/napi-rs/napi-rs) from 3.11.0 to 3.12.1.
- [Commits](napi-rs/napi-rs@napi-v3.11.0...napi-v3.12.1)

---
updated-dependencies:
- dependency-name: napi
  dependency-version: 3.12.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]