update test and runtime

Author: denis-yuen

wdl-parsing/template.yaml

@@ -16,7 +16,7 @@ Resources:
     Properties:
       CodeUri: WDLParsingFunction
       Handler: io.dockstore.wdlparser.App::handleRequest
-      Runtime: java11
+      Runtime: java21
       MemorySize: 512
       Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object
         Variables: