switch kr/pty to creack/pty v1.1.7

kr/pty was moved to creak/pty and the old location was
archived.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

integration-cli/docker_cli_update_unix_test.go

@@ -10,12 +10,12 @@ import (
 	"strings"
 	"time"
 
+	"github.com/creack/pty"
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/client"
 	"github.com/docker/docker/internal/test/request"
 	"github.com/docker/docker/pkg/parsers/kernel"
 	"github.com/go-check/check"
-	"github.com/kr/pty"
 	"gotest.tools/assert"
 )