Add comment on build file

Signed-off-by: John Mazanec <[email protected]>

build.gradle

@@ -233,6 +233,8 @@ testClusters.integTest {
         }
     }
 
+    // Increase heap size from default of 512mb to 1gb. When heap size is 512mb, our integ tests sporadically fail due
+    // to ml-commons memory circuit breaker exception
     jvmArgs("-Xms1g", "-Xmx1g")
 }