silence dns query error warning, at least until we can demote the upstream log to DEBUG (#6458)

Signed-off-by: garyschulte <garyschulte@gmail.com>

besu/src/main/resources/log4j2.xml

@@ -42,6 +42,9 @@
         <Logger name="org.apache.tuweni.discovery.DNSTimerTask">
             <RegexFilter regex="Refreshing DNS records with .*" onMatch="DENY" onMismatch="NEUTRAL" />
         </Logger>
+        <Logger name="org.apache.tuweni.discovery.DNSResolver">
+            <RegexFilter regex="DNS query error with .*" onMatch="DENY" onMismatch="NEUTRAL" />
+        </Logger>
         <Root level="${sys:root.log.level}">
             <AppenderRef ref="Router" />
         </Root>