Update Makefile

Author: timburke-hackit

external-lib/Makefile

@@ -3,7 +3,7 @@
 all: target/java-lib-1.0-SNAPSHOT-jar-with-dependencies.jar target/deequ-1.0.3.jar target/pydeequ-1.0.1.zip
 
 target/java-lib-1.0-SNAPSHOT-jar-with-dependencies.jar: pom.xml
-	mvn assembly:assembly -DdescriptorId=jar-with-dependencies
+	mvn clean package -DdescriptorId=jar-with-dependencies
 
 target/deequ-1.0.3.jar:
 	wget https://repo1.maven.org/maven2/com/amazon/deequ/deequ/1.0.3/deequ-1.0.3.jar -O target/deequ-1.0.3.jar