Bump jwt-simple to 0.12.x

Work around boringssl symbol conflicts with openssl by using its
pure-rust feature.

Author: niklasf

Cargo.toml

@@ -27,7 +27,7 @@ http = "0.2"
 serde = "1.0"
 serde_json = "1.0"
 serde_derive = "1.0"
-jwt-simple = "0.11.2"
+jwt-simple = { version = "0.12.11", default-features = false, features = ["pure-rust"] }
 ece = "2.2"
 pem = "3.0.4"
 sec1_decode = "0.1.0"