Problem list several awt jtreg tests that fail on macOS 11

The following bugs have been filed for the cited automated jtreg headful tests which fail on
at least one macOS 11 system
JDK-8265985 java/awt/Window/MainKeyWindowTest/TestMainKeyWindow.java
JDK-8266059 java/awt/security/WarningWindowDisposeTest/WarningWindowDisposeTest.java
JDK-8265986 java/awt/Robot/Delay/InterruptOfDelay.java
JDK-8265987 java/awt/MenuBar/TestNoScreenMenuBar.java

They are causing noise so we will problem list them until they can be properly diagnosed.