Add source jars to deployment

Signed-off-by: Dave Syer <[email protected]>

Author: Dave Syer

pom.xml

@@ -391,7 +391,21 @@
       </plugins>
     </pluginManagement>
     <plugins>
-      <plugin>
+    <!-- Sources jar -->
+    <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <version>3.2.1</version>
+        <executions>
+            <execution>
+                <id>attach-sources</id>
+                <goals>
+                    <goal>jar-no-fork</goal>
+                </goals>
+            </execution>
+        </executions>
+    </plugin>
+    <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-assembly-plugin</artifactId>
         <version>3.3.0</version>