fix ci error

400Ping · 400Ping · commit a5cd2a0ade5b · 2026-02-06T20:11:53.000+08:00
Signed-off-by: 400Ping &lt;jiekaichang@apache.org&gt;
diff --git a/historyserver/cmd/collector/main.go b/historyserver/cmd/collector/main.go
@@ -8,6 +8,8 @@ import (
 	"os/signal"
 	"path"
 	"strconv"
+	"sync"
+	"syscall"
 	"time"
 
 	"github.com/sirupsen/logrus"
