Switch to build-helper-maven-plugin 3.0.0.

Change-Id: Id7e6de3126d7607429be26615fae6a4c8c542a7d
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
diff --git a/core/releng/org.eclipse.dltk.core.targetplatform/pom.xml b/core/releng/org.eclipse.dltk.core.targetplatform/pom.xml
index 80604bf..6306d7b 100644
--- a/core/releng/org.eclipse.dltk.core.targetplatform/pom.xml
+++ b/core/releng/org.eclipse.dltk.core.targetplatform/pom.xml
@@ -17,7 +17,7 @@
         <plugin>
           <groupId>org.codehaus.mojo</groupId>
           <artifactId>build-helper-maven-plugin</artifactId>
-          <version>1.12</version>
+          <version>3.0.0</version>
           <executions>
             <execution>
               <id>attach-artifacts</id>