dependencies search: Integration with lsif-go uploads

Created by: tsenart

Dependencies search of Go dependency repos needs to be integrated with lsif-go uploads. There are three known issues that prevented us from doing this in a short amount of time before the 3.39 release:

1. The emitted scheme is gomod rather than the internal go which causes the dependency sync scheduler to not insert any dependency repos.
2. The emitted dependency names are URLs, which is different from what we find in go.mod files, and what the lockfiles service emits. We need to strip the URL schemes.
3. The versions are also different from what we find in go.mod files, for instance, specific commits are encoded as 9054f6ed7bac instead of v0.0.0-20220407144326-9054f6ed7bac which is what we find in the go.mod file.