Worker: support @local adaptor versions and load them from the monorepo

[josephjclark]

The worker should support adaptor versions @local, as in, @openfn/language-common@local, in which case it should load the adaptor version from the monorepo rather than trying to install it.

The CLI works the same way when the -m or --use-monorepo flag is passed. It just bypasses autoinstallation.

In practice I think all this really means is passing the monorepo flag and path into the compiler and runtime - which are already monorepo aware.

[josephjclark]

There's a bit of a problem in the runtime associated with this

In the CLI, if you're running from the monorepo, then EVERYTHING runs from the monorepo

I'm not sure Lightning should work like that. It should only use the monorepo if you add @local explicitly.

Where this is a problem is that the current runtime design says: here's a map of module specifies and paths to load them from on disk. It's a global option.

What we really need to do is support this logic per step. Which means a runtime patch and a bunch of tests