feat: add v5.1.1-beta1 package updates

Author: OneSignal

README.md

@@ -6,7 +6,7 @@ A powerful way to send personalized messages at scale and build effective custom
 This API client was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.  By using the [OpenAPI-spec](https://www.openapis.org/) from a remote server, you can easily generate an API client.
 
 - API version: 5.1.0
-- Package version: 5.1.0-beta1
+- Package version: 5.1.1-beta1
 - Build package: org.openapitools.codegen.languages.GoClientCodegen
 For more information, please visit [https://onesignal.com](https://onesignal.com)