update parent version to 2.4.0-M3

Author: yaseno2186

pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.jqassistant.plugin</groupId>
         <artifactId>parent</artifactId>
-        <version>2.1.0</version>
+        <version>2.4.0-M3</version>
     </parent>
 
     <artifactId>jqassistant-context-mapper-plugin</artifactId>
@@ -157,10 +157,6 @@
             <groupId>com.buschmais.jqassistant.core</groupId>
             <artifactId>test</artifactId>
         </dependency>
-        <dependency>
-            <groupId>com.buschmais.jqassistant.neo4j</groupId>
-            <artifactId>embedded</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>