Use non-empty project name for logging

[kubukoz]

I've been seeing these for a long time:

[info] Resolved  dependencies
[info] Fetching artifacts of 
[info] Fetched artifacts of 
[info] Fetching artifacts of 
[info] Fetched artifacts of

Clearly something was wrong. Turns out, the string being interpolated into all these logs has been empty all along!

val projectName = "" // used for logging only…

This PR sets the value to the best thing I found in scope. Let me know if there should be a test.

[kubukoz]

@eed3si9n @alexarchambault 🙏

[eed3si9n]

Thanks!