Drop Java 9, 10, 12 - add 13, 14 to Jenkins test matrix

diff --git a/Jenkinsfile b/Jenkinsfile
index d472c6f..144e405 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -17,4 +17,4 @@
  * under the License.
  */
 
-asfMavenTlpPlgnBuild(jdk:['8','9','10','11','12'])
+asfMavenTlpPlgnBuild(jdk:['8','11','13','14'])