chore(deps): upgrade jenkins-x-plugins/jx-project to version 0.2.80

from: https://github.com/jenkins-x-plugins/jx-project.git

-----
# jenkins-x-plugins/jx-project

## Changes in version 0.2.80

### Documentation

* remove or update deprecated documentation links (Mårten Svantesson)

Author: pow-devops2020

pkg/plugins/versions.go

@@ -28,7 +28,7 @@ const (
 	PreviewVersion = "0.6.0"
 
 	// ProjectVersion the version of the jx project plugin
-	ProjectVersion = "0.2.79"
+	ProjectVersion = "0.2.80"
 
 	// PromoteVersion the version of the jx promote plugin
 	PromoteVersion = "0.6.31"