Out of curiosity, are there any non-syntax/usability benefits to using this action over doing an install with npm?:
npm i -g pnpm@5
pnpm i --frozen-lockfile # Or `npx pnpm ...`
Or npx?:
npx pnpm@5 i --frozen-lockfile
In the case with npx, I'm thinking the benefit is simply that pnpm can be used multiple times without re-installing.