* test: assert against exact yarn package manager versions
this ensures specific package manager versions are being selected
* test: remove yarn cache files from yarn-3 test
* test: adding node types explicitly to avoid ts build failure
* test: fix yarn 2 test
was actually using yarn 4
* test: fix yarn 2 node_modules example
* test: snapshot update
* test: adding yarn cache back in
* test: adding yarn 2 cache
fails without the cache dir, which is a separate issue we need to fix
