Bump moby/buildkit

Signed-off-by: ulyssessouza <ulyssessouza@gmail.com>

vendor/github.com/containerd/continuity/driver/lchmod_linux.go

@@ -1,39 +0,0 @@
-/*
-   Copyright The containerd Authors.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-*/
-
-package driver
-
-import (
-	"os"
-
-	"golang.org/x/sys/unix"
-)
-
-// Lchmod changes the mode of a file not following symlinks.
-func (d *driver) Lchmod(path string, mode os.FileMode) error {
-	// On Linux, file mode is not supported for symlinks,
-	// and fchmodat() does not support AT_SYMLINK_NOFOLLOW,
-	// so symlinks need to be skipped entirely.
-	if st, err := os.Stat(path); err == nil && st.Mode()&os.ModeSymlink != 0 {
-		return nil
-	}
-
-	err := unix.Fchmodat(unix.AT_FDCWD, path, uint32(mode), 0)
-	if err != nil {
-		err = &os.PathError{Op: "lchmod", Path: path, Err: err}
-	}
-	return err
-}