[kube_apiserver_metrics] Make alpha and deprecated metrics comments consistent (#10891)
[kube_apiserver_metrics] Make alpha and deprecated metrics comments consistent (#10891)

* make alpha and deprecated metrics comments consistent, small grammar fixes
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