py4j in conda version

Author: Robert Kruszewski

resource-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/YarnClusterSuite.scala

@@ -336,7 +336,7 @@ class YarnClusterSuite extends BaseYarnClusterSuite {
     // needed locations.
     val sparkHome = sys.props("spark.test.home")
     val pythonPath = Seq(
-      s"$sparkHome/python/lib/py4j-0.10.4-src.zip",
+      s"$sparkHome/python/lib/py4j-0.10.6-src.zip",
       s"$sparkHome/python")
     val extraEnvVars = Map(
       "PYSPARK_ARCHIVES_PATH" -> pythonPath.map("local:" + _).mkString(File.pathSeparator),