feat: add check to ensure proper Go module path

[jqdurham]

I'm part of an organization where they rushed into building Go applications without noticing that Go module paths are often URLs (sans protocol).

https://go.dev/doc/modules/gomod-ref

The current module’s module path. This should be a location from which the module can be downloaded by Go tools, such as the module code’s repository location.

https://go.dev/ref/mod#module-path

A module path should describe both what the module does and where to find it. Typically, a module path consists of a repository root path, a directory within the repository (usually empty), and a major version suffix (only for major version 2 or higher).

This check makes use of https://pkg.go.dev/golang.org/x/mod/module#CheckPath.

[ldez]

Note: your PP doesn't appear inside the commit tree because the email you have used to commit is not defined inside your GitHub account.
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[jqdurham]

The email has been added to my profile.

[ldez]

@jqdurham I saw you are working for a big company, and this feature seems related to it.

In this context, I was wondering if you could kindly inquire with your company about the possibility of supporting golangci-lint?

• https://donate.golangci.org
• https://donate.ldez.dev

If you don't feel comfortable with this request, I fully understand, and you can ignore my request.

[ldez]

LGTM