vendor: update buildkit to master@9624ab4

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/moby/buildkit/util/system/atime_unix.go

@@ -0,0 +1,21 @@
+//go:build !windows
+// +build !windows
+
+package system
+
+import (
+	iofs "io/fs"
+	"syscall"
+	"time"
+
+	"github.com/containerd/continuity/fs"
+	"github.com/pkg/errors"
+)
+
+func Atime(st iofs.FileInfo) (time.Time, error) {
+	stSys, ok := st.Sys().(*syscall.Stat_t)
+	if !ok {
+		return time.Time{}, errors.Errorf("expected st.Sys() to be *syscall.Stat_t, got %T", st.Sys())
+	}
+	return fs.StatATimeAsTime(stSys), nil
+}

vendor/github.com/moby/buildkit/util/system/atime_windows.go

@@ -0,0 +1,17 @@
+package system
+
+import (
+	"fmt"
+	iofs "io/fs"
+	"syscall"
+	"time"
+)
+
+func Atime(st iofs.FileInfo) (time.Time, error) {
+	stSys, ok := st.Sys().(*syscall.Win32FileAttributeData)
+	if !ok {
+		return time.Time{}, fmt.Errorf("expected st.Sys() to be *syscall.Win32FileAttributeData, got %T", st.Sys())
+	}
+	// ref: https://github.com/golang/go/blob/go1.19.2/src/os/types_windows.go#L230
+	return time.Unix(0, stSys.LastAccessTime.Nanoseconds()), nil
+}

vendor/github.com/moby/buildkit/util/system/path_windows.go

@@ -4,9 +4,10 @@
 package system
 
 import (
-	"fmt"
 	"path/filepath"
 	"strings"
+
+	"github.com/pkg/errors"
 )
 
 // CheckSystemDriveAndRemoveDriveLetter verifies and manipulates a Windows path.
@@ -22,13 +23,13 @@ import (
 // d:\			--> Fail
 func CheckSystemDriveAndRemoveDriveLetter(path string) (string, error) {
 	if len(path) == 2 && string(path[1]) == ":" {
-		return "", fmt.Errorf("No relative path specified in %q", path)
+		return "", errors.Errorf("No relative path specified in %q", path)
 	}
 	if !filepath.IsAbs(path) || len(path) < 2 {
 		return filepath.FromSlash(path), nil
 	}
 	if string(path[1]) == ":" && !strings.EqualFold(string(path[0]), "c") {
-		return "", fmt.Errorf("The specified path is not on the system drive (C:)")
+		return "", errors.New("The specified path is not on the system drive (C:)")
 	}
 	return filepath.FromSlash(path[2:]), nil
 }