update base64 to 0.20.0 (#1173)

Author: demoray

sdk/iot_hub/Cargo.toml

@@ -10,7 +10,7 @@ rust-version = "1.64.0"
 [dependencies]
 async-trait = "0.1"
 azure_core = { path = "../core", version = "0.7", default_features = false }
-base64 = "0.13"
+base64 = "0.20"
 bytes = "1.0"
 time = "0.3.10"
 hmac = "0.12"

sdk/iot_hub/src/service/mod.rs

@@ -5,7 +5,7 @@ use azure_core::{
     auth::TokenCredential, prelude::Timeout, ClientOptions, CollectedResponse, Context, Method,
     Pipeline, Request, Response, TimeoutPolicy, Url,
 };
-use base64::{decode, encode_config};
+use base64::{decode, encode};
 use hmac::{Hmac, Mac};
 use sha2::Sha256;
 use std::sync::Arc;
@@ -131,7 +131,7 @@ impl ServiceClient {
 
         hmac.update(data.as_bytes());
         let result = hmac.finalize();
-        let sas_token: &str = &encode_config(result.into_bytes(), base64::STANDARD);
+        let sas_token: &str = &encode(result.into_bytes());
 
         let encoded: String = url::form_urlencoded::Serializer::new(String::new())
             .append_pair("sr", &format!("{}.azure-devices.net", iot_hub_name))