fix: fix SIGTERM error

pkg/util/genutil/genutil.go

@@ -15,7 +15,9 @@
 package genutil
 
 import (
+	"errors"
 	"fmt"
+	"github.com/OpenIMSDK/tools/errs"
 	"os"
 	"path/filepath"
 )
@@ -41,6 +43,9 @@ func OutDir(path string) (string, error) {
 }
 
 func ExitWithError(err error) {
+	if errors.Is(errs.Unwrap(err), errors.New("SIGTERM received, shutting down")) {
+		os.Exit(-1)
+	}
 	progName := filepath.Base(os.Args[0])
 	fmt.Fprintf(os.Stderr, "\n\n%s exit -1: \n%+v\n\n", progName, err)
 	os.Exit(-1)