[MM-55480] Update logr to v2.0.21 (#25431)

server/channels/api4/system.go

@@ -703,7 +703,7 @@ func setServerBusy(c *Context, w http.ResponseWriter, r *http.Request) {
 	audit.AddEventParameter(auditRec, "seconds", i)
 
 	c.App.Srv().Platform().Busy.Set(time.Second * time.Duration(i))
-	c.Logger.Warn("server busy state activated - non-critical services disabled", mlog.Int64("seconds", i))
+	c.Logger.Warn("server busy state activated - non-critical services disabled", mlog.Int("seconds", i))
 
 	auditRec.Success()
 	ReturnStatusOK(w)