Use gh actions for build status (#2522)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

README.md

 # Lens | The Kubernetes IDE
 
-[![Build Status](https://dev.azure.com/lensapp/lensapp/_apis/build/status/lensapp.lens?branchName=master)](https://dev.azure.com/lensapp/lensapp/_build/latest?definitionId=1&branchName=master)
+[![Build Status](https://github.com/lensapp/lens/actions/workflows/test.yml/badge.svg)](https://github.com/lensapp/lens/actions/workflows/test.yml)
 [![Releases](https://img.shields.io/github/downloads/lensapp/lens/total.svg)](https://github.com/lensapp/lens/releases?label=Downloads)
 [![Chat on Slack](https://img.shields.io/badge/chat-on%20slack-blue.svg?logo=slack&longCache=true&style=flat)](https://join.slack.com/t/k8slens/shared_invite/enQtOTc5NjAyNjYyOTk4LWU1NDQ0ZGFkOWJkNTRhYTc2YjVmZDdkM2FkNGM5MjhiYTRhMDU2NDQ1MzIyMDA4ZGZlNmExOTc0N2JmY2M3ZGI)
 
@@ -25,7 +25,7 @@ The Lens open source project is backed by a number of Kubernetes and cloud nativ
 * Lens Extensions are used to add custom visualizations and functionality to accelerate development workflows for all the technologies and services that integrate with Kubernetes
 * Port forwarding
 * Helm package deployment: Browse and deploy Helm charts with one click-Install
-* Extensions via Lens Extensions API 
+* Extensions via Lens Extensions API
 
 ## Installation