Bump plugin version

Author: chadlwilson

build.gradle

@@ -21,7 +21,7 @@ apply from: "https://raw.githubusercontent.com/gocd/gocd-plugin-gradle-task-help
 
 gocdPlugin {
     id = 'cd.go.contrib.elastic-agent.docker'
-    pluginVersion = '4.0.0'
+    pluginVersion = '4.1.0'
     goCdVersion = '22.1.0'
     name = 'Docker Elastic Agent Plugin'
     description = 'Docker Based Elastic Agent Plugins for GoCD'