[flex counter] Flex counter threads consume too much CPU resources. s…

…onic-net#9202 (sonic-net#1925)

* [flex counter] Flex counter threads consume too much CPU resources. sonic-net#9202

Increase the interval up lmit from 30 seconds to 60 seconds

* only modify the interval of watermark counter group

* fix merge conflict

* fix commit issue

counterpoll/main.py

@@ -204,7 +204,7 @@ def watermark():
     """ Watermark counter commands """
 
 @watermark.command()
-@click.argument('poll_interval', type=click.IntRange(1000, 30000))
+@click.argument('poll_interval', type=click.IntRange(1000, 60000))
 def interval(poll_interval):
     """ Set watermark counter query interval for both queue and PG watermarks """
     configdb = ConfigDBConnector()