chore(sso-oidc): make DeviceCode optional for createToken call (#127)

Author: trivikr

clients/client-sso-oidc/src/models/models_0.ts

@@ -81,7 +81,7 @@ export interface CreateTokenRequest {
    *       used to identify this authentication attempt. This should come from an in-memory reference to
    *       the result of the <a>StartDeviceAuthorization</a> API.</p>
    */
-  deviceCode: string | undefined;
+  deviceCode?: string;
 
   /**
    * <p>The authorization code received from the authorization service. This parameter is required

codegen/sdk-codegen/aws-models/sso-oidc.json

@@ -190,8 +190,7 @@
         "deviceCode": {
           "target": "com.amazonaws.ssooidc#DeviceCode",
           "traits": {
-            "smithy.api#documentation": "<p>Used only when calling this API for the device code grant type. This short-term code is\n      used to identify this authentication attempt. This should come from an in-memory reference to\n      the result of the <a>StartDeviceAuthorization</a> API.</p>",
-            "smithy.api#required": {}
+            "smithy.api#documentation": "<p>Used only when calling this API for the device code grant type. This short-term code is\n      used to identify this authentication attempt. This should come from an in-memory reference to\n      the result of the <a>StartDeviceAuthorization</a> API.</p>"
           }
         },
         "code": {