Upgrade ecj plugin to 3.19.0

Change-Id: I36854a4e27ad3b0fc6c2ac145d78df582bca3988
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
diff --git a/pom.xml b/pom.xml
index f0bf41b..5c812d6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -926,7 +926,7 @@
               <dependency>
                 <groupId>org.eclipse.jdt</groupId>
                 <artifactId>ecj</artifactId>
-                <version>3.18.0</version>
+                <version>3.19.0</version>
               </dependency>
             </dependencies>
           </plugin>