Fixing configuration for publishing to maven. (#116)

This stopped working after the latest maven-source-plugin version bump

pom.xml

@@ -20,7 +20,7 @@
   <groupId>software.amazon.event.ruler</groupId>
   <artifactId>event-ruler</artifactId>
   <name>Event Ruler</name>
-  <version>1.4.0</version>
+  <version>1.4.1</version>
   <description>Event Ruler is a Java library that allows matching Rules to Events. An event is a list of fields,
     which may be given as name/value pairs or as a JSON object. A rule associates event field names with lists of
     possible values. There are two reasons to use Ruler: 1/ It's fast; the time it takes to match Events doesn't
@@ -123,7 +123,7 @@
           <execution>
             <id>attach-sources</id>
             <goals>
-              <goal>jar</goal>
+              <goal>jar-no-fork</goal>
             </goals>
           </execution>
         </executions>