Update pom.xml

Avoid memory starvation

Author: tsantalis

pom.xml

@@ -139,7 +139,7 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>3.5.4</version>
                 <configuration>
-                    <argLine>-Xmx16g</argLine>
+                    <argLine>-Xmx10g</argLine>
                     <parallel>suites</parallel>
                     <perCoreThreadCount>true</perCoreThreadCount>
                     <additionalClasspathElements>