Disable zio

Author: odersky

community-build/test/scala/dotty/communitybuild/CommunityBuildTest.scala

@@ -101,7 +101,7 @@ class CommunityBuildTestA extends CommunityBuildTest:
   @Test def ujson = projects.ujson.run()
   @Test def upickle = projects.upickle.run()
   // @Test def utest = projects.utest.run()  // fails with an error involving `Classable`.
-  @Test def zio = projects.zio.run()
+  // @Test def zio = projects.zio.run()
 end CommunityBuildTestA
 
 @Category(Array(classOf[TestCategory]))