chore: Migrate from yarn to pnpm and set up Changesets (#129)
* Switch from yarn to pnpm
* Set up changesets
* Update Rollup config
* Update all dependencies
* Remove obsolete dotfiles
* Replace yarn with pnpm in perf/
* Fix pnpm store path in GitHub Actions
* Add cjs-check plugin to Rollup
* Remove redundant option from .changeset/config.json
* Fix GitHub Actions workflow cache variable
authored by