Updates metadata.csv to use squid.cachemgr as metric prefix (#2122)
Updates metadata.csv to use squid.cachemgr as metric prefix (#2122)


DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core,DataDog/integrations-core