feat: Replace GRPC with Dubbo-go in notification c

pkg/rpcclient/notification/conversation.go

@@ -0,0 +1,26 @@
+package notification
+
+import (
+	"context"
+	"github.com/apache/dubbo-go"
+	pbconv "github.com/OpenIMSDK/protocol/conversation"
+	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
+)
+
+type Conversation struct {
+	Client pbconv.ConversationClient
+	conn   dubbo-go.ClientConnInterface
+	discov discoveryregistry.SvcDiscoveryRegistry
+}
+
+func (c *Conversation) SendMessage(ctx context.Context, req *pbconv.SendMessageReq) (*pbconv.SendMessageResp, error) {
+	return c.Client.SendMessage(ctx, req)
+}
+
+func (c *Conversation) GetConversation(ctx context.Context, req *pbconv.GetConversationReq) (*pbconv.GetConversationResp, error) {
+	return c.Client.GetConversation(ctx, req)
+}
+
+func (c *Conversation) DeleteConversation(ctx context.Context, req *pbconv.DeleteConversationReq) (*pbconv.DeleteConversationResp, error) {
+	return c.Client.DeleteConversation(ctx, req)
+}