Set default-features = false for reqwest dependency

[jqnatividad]

First, thanks @Stranger6667 for this amazing library as it allows qsv to validate CSVs.

However, we're having difficulty building binaries using cross as the reqwest dependency brings in native-tls by default, which in turn pulls in openssl which is no longer supported by cross (cross-rs/cross#229), even if I take advantage of the jsonschema's reqwest-rustls-tls feature.

Would it be possible to set default-features = false in the reqwest dependency?

In that way, jsonschema users can specify which tls they want to use and the reqwest dependency forwarding feature actually works as expected.

[Stranger6667]

Hi @jqnatividad

Glad you find the library helpful :) Thank you for opening this issue, sure, the proposed change makes complete sense and I'll take a look at #336 shortly

[Stranger6667]

Released in 0.14.0 :)