Update dependencies in Cargo.toml to disable default features for req…

…west and add new feature flags for OpenSSL and Rustls. This enhances control over the used TLS implementation.

Cargo.toml

@@ -22,7 +22,7 @@ travis-ci = { repository = "ipinfo/rust", branch = "master" }
 codecov = { repository = "ipinfo/rust", branch = "master", service = "github" }
 
 [dependencies]
-reqwest = { version = "0.11", features = ["json"] }
+reqwest = { version = "0.11", features = ["json"], default-features = false }
 lru = "0.12.1"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
@@ -36,3 +36,8 @@ tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 [profile.release]
 overflow-checks = true
 lto = true
+
+[features]
+default = ["openssl"]
+rustls-tls = ["reqwest/rustls-tls"]
+openssl = ["reqwest/native-tls"]