fix: incorrect parsing of dep::{foo, bar}

[asterite]

Description

Problem

Resolves #5299

Summary

It seems that for an empty path, dep was parsed as a plain path (so the bug wasn't just formatting, it was incorrectly interpreting the import).

I do wonder if the existing code was like that so that use dep; imported a module named dep.nr? Though maybe that should be disallowed... 🤔

Additional Context

None

Documentation*

Check one:

• No documentation needed.
• Documentation included in this PR.
• [For Experimental Features] Documentation to be submitted in a separate PR.

PR Checklist*

• I have tested the changes locally.
• I have formatted the changes with Prettier and/or cargo fmt on default settings.

[asterite]

Oooh... nevermind. It seems the idea is to remove dep: #4946