Update CI link in README (#3734)

Author: philippthun

README.md

@@ -8,7 +8,7 @@
 
 * [V3 API Docs](http://v3-apidocs.cloudfoundry.org)
 * [V2 API Docs](http://apidocs.cloudfoundry.org)
-* [Continuous Integration Pipelines](https://ci.cake.capi.land/)
+* [Continuous Integration Pipelines](https://concourse.app-runtime-interfaces.ci.cloudfoundry.org/teams/capi-team)
 * [Notes on V3 Architecture](https://github.com/cloudfoundry/cloud_controller_ng/wiki/Notes-on-V3-Architecture)
 * [capi-release](https://github.com/cloudfoundry/capi-release) - The bosh release used to deploy cloud controller