updated tycho, added versions plugin

releng/mvn-jwt-builder/pom.xml

diff --git a/releng/mvn-jwt-builder/pom.xml b/releng/mvn-jwt-builder/pom.xml
index c24df77..eb22a7b 100644
--- a/releng/mvn-jwt-builder/pom.xml
+++ b/releng/mvn-jwt-builder/pom.xml
@@ -41,7 +41,7 @@
   </modules>
 
   <properties>
-    <tycho-version>0.21.0</tycho-version>
+    <tycho-version>0.24.0</tycho-version>
     <maven.build.timestamp.format>yyyyMMdd-HHmm</maven.build.timestamp.format>
     <download-publish-path>/home/data/httpd/download.eclipse.org/jwt/</download-publish-path>
   </properties>
@@ -86,6 +86,13 @@
         <extensions>true</extensions>
       </plugin>
     
+	  <!-- tycho versions plugin -->
+	  <plugin>
+	    <groupId>org.eclipse.tycho</groupId>
+	    <artifactId>tycho-versions-plugin</artifactId>
+	    <version>${tycho-version}</version>
+  	  </plugin>
+    
       <plugin>
         <groupId>org.eclipse.tycho</groupId>
         <artifactId>tycho-surefire-plugin</artifactId>