Add java.util.concurrent.ConcurrentLinkedDeque to the class deserialization...

Add java.util.concurrent.ConcurrentLinkedDeque to the class deserialization whitelist (JEP-200) (#4300)

* Add java.util.concurrent.ConcurrentLinkedDeque

Recently upgraded and one of our in-house plugins failed due to:

Caused by: java.lang.UnsupportedOperationException: Refusing to marshal java.util.concurrent.ConcurrentLinkedDeque

Since both java.util.ArrayDeque and java.util.concurrent.ConcurrentLinkedQueue are whitelisted, it makes sense to also whitelist this class.

* Update whitelisted-classes.txt

core/src/main/resources/jenkins/security/whitelisted-classes.txt

@@ -124,6 +124,7 @@ java.util.TreeSet
 java.util.UUID
 java.util.Vector
 java.util.concurrent.ConcurrentHashMap
+java.util.concurrent.ConcurrentLinkedDeque
 java.util.concurrent.ConcurrentLinkedQueue
 java.util.concurrent.ConcurrentSkipListMap
 java.util.concurrent.CopyOnWriteArrayList