updated discovery url

sdk/src/main/java/com/microsoft/did/sdk/VerifiableCredentialSdk.kt

@@ -66,7 +66,7 @@ object VerifiableCredentialSdk {
         logConsumer: SdkLog.Consumer = DefaultLogConsumer(),
         polymorphicJsonSerializers: SerializersModule = Json.serializersModule,
         registrationUrl: String = "",
-        resolverUrl: String = "https://beta.discover.did.microsoft.com/1.0/identifiers"
+        resolverUrl: String = "https://discover.did.msidentity.com/v1.0/identifiers"
     ) {
         val sdkComponent = DaggerSdkComponent.builder()
             .context(context)