[http client]: add HTTPS support (#210)

* Revert "[http client]: switch to surf instead of hyper (#204)"

This reverts commit ce1625b7

.

* feat(http client): HTTPS support

* [deps]: hyper-rustls

* fix nit

* more ugly conditional compilation

* Update http-client/src/transport.rs

* Update http-client/src/transport.rs

* Update http-client/src/transport.rs

Co-authored-by: David <[email protected]>

* Update http-client/src/transport.rs

Co-authored-by: David <[email protected]>

* Update http-client/src/transport.rs

Co-authored-by: David <[email protected]>

* [http client]: make `tls` not optional.

* fix bad merge

* simplify imports

Co-authored-by: David <[email protected]>