Upgrade rustls to 0.19.

Author: jakubadamw

Cargo.toml

@@ -72,7 +72,7 @@ once_cell = { version = "1.4.1", optional = true }
 cfg-if = "1.0.0"
 getrandom = "0.2.0"
 encoding_rs = { version = "0.8.20", optional = true }
-rustls_crate = { version = "0.18", optional = true, package = "rustls" }
+rustls_crate = { version = "0.19", optional = true, package = "rustls" }
 async-native-tls = { version = "0.3.3", optional = true }
 
 web-sys = { optional = true, version = "0.3.25", features = ["TextDecoder"] }