test(utils): 添加事件驱动模型测试

- 在 sqrt_test.go 中添加了 fastSqr1 测试函数，用于测试事件驱动模型
- 新增了 Event 和 Uint32AsyncEvent 类型用于测试
- 更新了 go.work、go.mod 和

common/utils/event/test_scenarios/factory-request-reply/events/main.go

@@ -0,0 +1,56 @@
+package events
+
+import (
+	"sync"
+
+	"github.com/badu/bus/test_scenarios/factory-request-reply/inventory"
+	"github.com/badu/bus/test_scenarios/factory-request-reply/prices"
+)
+
+type InventoryGRPCClientRequestEvent struct {
+	wg     sync.WaitGroup
+	Conn   Closer // should be *grpc.ClientConn, but we're avoiding the import
+	Client inventory.ServiceClient
+}
+
+func NewInventoryGRPCClientRequestEvent() *InventoryGRPCClientRequestEvent {
+	result := InventoryGRPCClientRequestEvent{}
+	result.wg.Add(1)
+	return &result
+}
+
+func (i *InventoryGRPCClientRequestEvent) Async() bool {
+	return true // this one is async
+}
+
+func (i *InventoryGRPCClientRequestEvent) WaitReply() {
+	i.wg.Wait()
+}
+
+func (i *InventoryGRPCClientRequestEvent) Reply() {
+	i.wg.Done()
+}
+
+type PricesGRPCClientRequestEvent struct {
+	wg     sync.WaitGroup
+	Conn   Closer // should be *grpc.ClientConn, but we're avoiding the import
+	Client prices.ServiceClient
+}
+
+func NewPricesGRPCClientRequestEvent() *PricesGRPCClientRequestEvent {
+	result := PricesGRPCClientRequestEvent{}
+	result.wg.Add(1)
+	return &result
+}
+
+func (p *PricesGRPCClientRequestEvent) WaitReply() {
+	p.wg.Wait()
+}
+
+func (p *PricesGRPCClientRequestEvent) Reply() {
+	p.wg.Done()
+}
+
+type Closer interface {
+	Close() error
+}