Only use json & rustls features of reqwest

Author: cwaldren-ld

contract-tests/Cargo.toml

@@ -11,7 +11,7 @@ eventsource-client = { path = "../eventsource-client" }
 serde_json = { version = "1.0.39"}
 actix = { version = "0.12.0"}
 actix-web = { version = "4.0.0-beta.10"}
-reqwest = { version = "0.11.6", features = ["json"] }
+reqwest = { version = "0.11.6", default_features = false, features = ["json", "rustls-tls"] }
 env_logger = { version = "0.7.1" }
 hyper = { version = "0.14.4", features = ["client", "http1", "tcp"] }
 log = "0.4.6"