CI Badge fix (#552)

README.md

@@ -1,6 +1,6 @@
 <a href="https://sap.github.io/cloud-sdk/docs/java/overview-cloud-sdk-for-java"><img src="https://help.sap.com/doc/2324e9c3b28748a4ae2ad08166d77675/1.0/en-US/logo-for-java.svg" alt="SAP Cloud SDK for Java Logo" height="122.92" width="226.773"/></a>
 
-![build](https://github.com/SAP/cloud-sdk-java/actions/workflows/continuous-integration.yaml/badge.svg)
+![build](https://github.com/SAP/cloud-sdk-java/actions/workflows/continuous-integration.yaml/badge.svg?branch=main)
 [![REUSE status](https://api.reuse.software/badge/github.com/SAP/cloud-sdk-java)](https://api.reuse.software/info/github.com/SAP/cloud-sdk-java)
 [![Fosstars security rating](https://github.com/SAP/cloud-sdk-java/blob/fosstars-report/fosstars_badge.svg)](https://github.com/SAP/cloud-sdk-java/blob/fosstars-report/fosstars_report.md)
 [![Maven Central](https://img.shields.io/badge/maven_central-5.11.0-blue.svg)](https://search.maven.org/search?q=g:com.sap.cloud.sdk%20AND%20a:sdk-core%20AND%20v:5.11.0)