monorepo improvement: use npm/pnpm workspaces

[sebaplaza]

Instead of manual script
would be great to use native monorepo utils to install npm dependencies.

We can use just npm workspaces or pnpm workspaces to manage dependencies.

This will help to have a easier way to link internal packages between them, same for bump versions.

[bcoe]

sounds like a good idea 👍 would happily take a patch for this.

[sebaplaza]

I made a PR.

But i was thinking of CI tests, force the npm>=7 version could be a problem in matrix tests

in this case, we could install npm>=7 in CI, just to manage dependencies, but the tests will continue using the desired node version to run.

[sebaplaza]

can i delete the "master" restriction in CI ?

https://github.com/istanbuljs/istanbuljs/blob/master/.github/workflows/ci.yml#L4

Like this, we can know if branches are ok.

[sebaplaza]

@bcoe is ok for you ?