[Improve] modify kafka log level (apache#2763)

Co-authored-by: Zhang Yuxuan <[email protected]>

manager/src/main/resources/logback-spring.xml

@@ -90,6 +90,7 @@
     <logger name="springfox" level="info"/>
     <logger name="org.mongodb" level="warn"/>
     <logger name="io.greptime" level="warn"/>
+    <logger name="org.apache.kafka" level="warn"/>
 
     <!-- Production environment configuration -->
     <springProfile name="prod">