* Replace atty with is-terminal

* Remove advisory

---------

Co-authored-by: Jake Shadle <jake.shadle@embark-studios.com>

* Fix issue with .git suffix

Adds tests of non-crates.io registries

* Update

* Fix trailing slash

* Warn and strip when using scheme modifiers

* Improve diagnostics when we can't query for a crate

* Detect sparse registry usage

Currently in cargo, crates.io sparse support acts more like a patch in
that the source for crates.io packages are still the old git index url,
however the actual index used is the sparse one, which we can detect by
checking if the crate's source is located in the sparse checkout
location. This is...hacky, but will _probably_ not change and should
suffice until such a time as the sparse index becomes the default and/or
the crates.io source is changed to use the sparse url rather than the
git one

* Update tests

* Allow configuration of crates.io git index

* Fix lints

* Fix paths for windows