update default_features due to deprecated

Author: Pana

ledger_device_sdk/Cargo.toml

@@ -16,9 +16,9 @@ testmacro = { path = "../testmacro", version = "0.1.0"}
 
 [dependencies]
 include_gif = {path = "../include_gif", version = "1.2.0"}
-num-traits = { version = "0.2.14", default_features = false }
-rand_core = { version = "0.6.3", default_features = false }
-zeroize = { version = "1.6.0", default_features = false }
+num-traits = { version = "0.2.14", default-features = false }
+rand_core = { version = "0.6.3", default-features = false }
+zeroize = { version = "1.6.0", default-features = false }
 numtoa = "0.2.4"
 const-zero = "0.1.1"
 ledger_secure_sdk_sys = { path = "../ledger_secure_sdk_sys", version = "1.5.2" }