Bump moby/buildkit

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

vendor/github.com/containerd/continuity/ioutils.go

@@ -1,63 +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 continuity
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-)
-
-// AtomicWriteFile atomically writes data to a file by first writing to a
-// temp file and calling rename.
-func AtomicWriteFile(filename string, data []byte, perm os.FileMode) error {
-	buf := bytes.NewBuffer(data)
-	return atomicWriteFile(filename, buf, int64(len(data)), perm)
-}
-
-// atomicWriteFile writes data to a file by first writing to a temp
-// file and calling rename.
-func atomicWriteFile(filename string, r io.Reader, dataSize int64, perm os.FileMode) error {
-	f, err := ioutil.TempFile(filepath.Dir(filename), ".tmp-"+filepath.Base(filename))
-	if err != nil {
-		return err
-	}
-	err = os.Chmod(f.Name(), perm)
-	if err != nil {
-		f.Close()
-		return err
-	}
-	n, err := io.Copy(f, r)
-	if err == nil && n < dataSize {
-		f.Close()
-		return io.ErrShortWrite
-	}
-	if err != nil {
-		f.Close()
-		return err
-	}
-	if err := f.Sync(); err != nil {
-		f.Close()
-		return err
-	}
-	if err := f.Close(); err != nil {
-		return err
-	}
-	return os.Rename(f.Name(), filename)
-}