Revert "upgrade Chronicle map"

This reverts commit 58784c6.

causes test failures

Author: Vladimir Kotal

suggester/pom.xml

@@ -72,7 +72,7 @@
         <dependency>
             <groupId>net.openhft</groupId>
             <artifactId>chronicle-map</artifactId>
-            <version>3.20.80</version>
+            <version>3.20.2</version>
             <exclusions>
                 <exclusion>
                     <groupId>com.sun.java</groupId>