Add logging exception for the licence checker in the ci log4j config

Signed-off-by: Thomas Cooper <[email protected]>

Author: tomncooper

tools/ci/log4j.properties

@@ -44,6 +44,10 @@ logger.flink.level = WARN
 logger.flinkconnector.name = org.apache.flink.connector
 logger.flinkconnector.level = INFO
 
+# Allow the LicenseChecker to log its output
+logger.licensechecker.name = org.apache.flink.tools.ci.licensecheck
+logger.licensechecker.level = INFO
+
 # Kafka producer and consumer level
 logger.kafka.name = org.apache.kafka
 logger.kafka.level = OFF