Upgraded to latest version of spark to try and address #71

Author: sapessi

aws-serverless-java-container-spark/pom.xml

@@ -15,7 +15,7 @@
     </parent>
 
     <properties>
-        <spark.version>2.6.0</spark.version>
+        <spark.version>2.7.1</spark.version>
     </properties>
 
     <dependencies>