Updated some dependencies that were flagged in npm audit
What's Changed
- Improve test coverage by @Kalininator in #19
- add tests, improve error return from assertUnreachable by @Kalininator in #20
- Add more tests by @Kalininator in #21
- npm audit issues by @Kalininator in #24
- npm ci by @Kalininator in #25
- Update _config.yml by @Kalininator in #26
Full Changelog: v1.1.0...v1.1.1