search: token needed

[mcorbin]

cargo search does not seem to pass the user token to the HTTP call.

Currently, Meuse checks the token for the search endpoint, so search calls with cargo are failing (but work with curl).

I can easily remove the auth check on the search endpoint, but I would like to first check if it's possible to (optionally) pass the token in Cargo itself.

[mcorbin]

For now, I disabled the authentication on the search endpoint.

[mcorbin]

Related issue in cargo: rust-lang/cargo#7091

[mcorbin]

closing it for now, nothing to do until it's fixed in cargo.