Set default throttling time to 5 sec (#721)

Co-authored-by: Kulyakhtin, Alexander (Ext) <[email protected]>

Author: akulyakhtin

msal4j-sdk/src/main/java/com/microsoft/aad/msal4j/ThrottlingCache.java

@@ -12,7 +12,7 @@
 class ThrottlingCache {
 
     static final int MAX_THROTTLING_TIME_SEC = 3600;
-    static int DEFAULT_THROTTLING_TIME_SEC = 120;
+    static int DEFAULT_THROTTLING_TIME_SEC = 5;
     static final int CACHE_SIZE_LIMIT_TO_TRIGGER_EXPIRED_ENTITIES_REMOVAL = 100;
 
     // request hash to expiration timestamp