MM-15186: Migrate "WebHook.GetOutgoingByTeam" to Sync by defa (#10707)

cmd/mattermost/commands/webhook.go

@@ -108,7 +108,12 @@ func listWebhookCmdF(command *cobra.Command, args []string) error {
 			incomingResult <- store.StoreResult{Data: incomingHooks, Err: err}
 			close(incomingResult)
 		}()
-		outgoingResult := app.Srv.Store.Webhook().GetOutgoingByTeam(team.Id, 0, 100000000)
+		outgoingResult := make(chan store.StoreResult, 1)
+		go func() {
+			outgoingHooks, err := app.Srv.Store.Webhook().GetOutgoingByTeam(team.Id, 0, 100000000)
+			outgoingResult <- store.StoreResult{Data: outgoingHooks, Err: err}
+			close(outgoingResult)
+		}()
 
 		if result := <-incomingResult; result.Err == nil {
 			CommandPrettyPrintln(fmt.Sprintf("Incoming webhooks for %s (%s):", team.DisplayName, team.Name))