Consuming inside a yarn monorepo does not work with `publish --update`

[comp615]

In a Yarn monorepo, if you try and consume a yalc'ed package, you will not be able to use the --update command.

Actual
Yalc will try to run npm

Expected
Yalc should run yarn

Why
The working directory in this case is the submodule itself so {workspaceRoot}/libs/my-lib...that will have a package.json file where the yalc file link is correctly added.

However, the update command searches for the package manager lockfile only in the workingDir. Because this is a sub-module, it does not have a lockfile...that exists only at {workspaceRoot}. Presumably this would be a similar problem with any workspace-oriented package manager.

Options:

• Search up the tree before giving up
• Allow an arg to override the package manager