Fix cached jre for java 15

Signed-off-by: Emily Casey <[email protected]>

Author: ekcasey

rakelib/dependency_cache_task.rb

@@ -132,7 +132,7 @@ def configurations(component_id, configuration, sub_component_id = nil)
 
         if component_id == 'open_jdk_jre' && sub_component_id == 'jre'
           c1 = configuration.clone
-          c1['version'] = '14.+'
+          c1['version'] = '15.+'
 
           configurations << c1
         end