fix: add name field to local sesion

Signed-off-by: JM Huibonhoa <jm.huibonhoa@solo.io>

Author: jmhbh

go/adk/pkg/session/local_session.go

@@ -16,6 +16,7 @@ type localSession struct {
 	appName   string
 	userID    string
 	sessionID string
+	name      *string
 
 	mu        sync.RWMutex
 	events    []*adksession.Event