Fix branch ref in status badge

Author: bart-vmware

README.md

@@ -1,6 +1,6 @@
 # Steeltoe .NET Open Source Software
 
-[![Build Status](https://github.com/SteeltoeOSS/Steeltoe/actions/workflows/Steeltoe.All.yml/badge.svg?branch=main)](https://github.com/SteeltoeOSS/Steeltoe/actions/workflows/Steeltoe.All.yml?query=branch%3Amain)
+[![Build Status](https://github.com/SteeltoeOSS/Steeltoe/actions/workflows/Steeltoe.All.yml/badge.svg?branch=4.x)](https://github.com/SteeltoeOSS/Steeltoe/actions/workflows/Steeltoe.All.yml?query=branch%3A4.x)
  [![SonarCloud](https://sonarcloud.io/api/project_badges/measure?project=SteeltoeOSS_steeltoe&branch=main&metric=alert_status)](https://sonarcloud.io/component_measures?id=SteeltoeOSS_steeltoe&branch=main)
  [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=SteeltoeOSS_steeltoe&branch=main&metric=coverage)](https://sonarcloud.io/component_measures?id=SteeltoeOSS_steeltoe&branch=main&metric=coverage&view=list)
  [![NuGet Version](https://img.shields.io/nuget/v/Steeltoe.Common.svg?style=flat)](https://www.nuget.org/profiles/SteeltoeOSS)