Provide the ability to test early access JDK.next support

Signed-off-by: Snjezana Peco <snjezana.peco@redhat.com>

Author: snjeza

package.json

@@ -473,7 +473,8 @@
                   "JavaSE-10",
                   "JavaSE-11",
                   "JavaSE-12",
-                  "JavaSE-13"
+                  "JavaSE-13",
+                  "JavaSE-14"
                 ],
                 "label": "Java Execution Environment name. Must be unique"
               },