chore(util-user-agent-node): appId config file name correction

Author: siddsriv

packages/util-user-agent-node/src/nodeAppIdConfigOptions.ts

@@ -1,6 +1,5 @@
-import { LoadedConfigSelectors } from "@smithy/node-config-provider";
 import { DEFAULT_UA_APP_ID } from "@aws-sdk/middleware-user-agent";
-
+import { LoadedConfigSelectors } from "@smithy/node-config-provider";
 
 /**
  * @internal
@@ -10,7 +9,7 @@ export const UA_APP_ID_ENV_NAME = "AWS_SDK_UA_APP_ID";
 /**
  * @internal
  */
-export const UA_APP_ID_INI_NAME = "sdk-ua-app-id";
+export const UA_APP_ID_INI_NAME = "sdk_ua_app_id";
 
 /**
  * @internal