Add MFolderIDsAPICount metric to count FolderIDs in api package (#80866)

* Add MFolderIDsAPICount metric to cound FolderIDs in api package

* Change counter to counter vector with method names as string values

pkg/api/dashboard_permission.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/grafana/grafana/pkg/api/dtos"
 	"github.com/grafana/grafana/pkg/api/response"
+	"github.com/grafana/grafana/pkg/infra/metrics"
 	"github.com/grafana/grafana/pkg/services/accesscontrol"
 	"github.com/grafana/grafana/pkg/services/auth/identity"
 	contextmodel "github.com/grafana/grafana/pkg/services/contexthandler/model"
@@ -193,6 +194,7 @@ func (hs *HTTPServer) getDashboardACL(ctx context.Context, user identity.Request
 
 		permission := dashboardPermissionMap[hs.dashboardPermissionsService.MapActions(p)]
 
+		metrics.MFolderIDsAPICount.WithLabelValues(metrics.GetDashboardACL).Inc()
 		acl = append(acl, &dashboards.DashboardACLInfoDTO{
 			OrgID:          dashboard.OrgID,
 			DashboardID:    dashboard.ID,