Use ACI for Windows Docker Test Cases (jenkinsci#222)

Author: car-roll

Jenkinsfile

@@ -1,4 +1,4 @@
 buildPlugin(platforms: [
     'linux',
-    'windows && !windock' // TODO Docker-based tests fail on 2019
+    'maven-windows' // TODO Docker-based tests fail when using Docker on Windows. The maven-windows agents do not have Docker installed so tests that require Docker are skipped.
 ])