Merge pull request #83 from benedekh/snyk-fix-0121ea26552f88f95e95a3cedeb4b0d3

[Snyk] Security upgrade org.apache.zookeeper:zookeeper from 3.9.3 to 3.9.4

Author: benedekh

hu.bme.bigdata.homework.spark.flight3/pom.xml

@@ -143,7 +143,7 @@
 		<dependency>
 		  <groupId>org.apache.zookeeper</groupId>
 		  <artifactId>zookeeper</artifactId>
-		  <version>3.9.3</version>
+		  <version>3.9.4</version>
 		</dependency>
 	</dependencies>
 	<build>