Verify canary release

• I verified that the issue exists in the latest Turborepo canary release.

Link to code that reproduces this issue

https://github.com/vercel/turborepo/tree/main

Which canary version will you have in your reproduction?

...I'm not sure sorry.

Environment information

n/a

Expected behavior

When PNPM is selected when creating a turborepo with the docker example, I would expect the dockerfile to use PNPM and no Yarn.

Actual behavior

When PNPM is selected with the docker example YARN is used.

To Reproduce

repo steps:

1. Create a new project with pnpm: npx create-turbo@latest -e with-docker
2. when prompted to select pnpm, enter yes.
3. check this file: turborepo/examples/with-docker/apps/web/Dockerfile and see if PNPM is used

Additional context

No response