Update go.mod and vendor

vendor/github.com/moby/buildkit/util/appdefaults/appdefaults_unix.go

@@ -1,69 +0,0 @@
-// +build !windows
-
-package appdefaults
-
-import (
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-const (
-	Address   = "unix:///run/buildkit/buildkitd.sock"
-	Root      = "/var/lib/buildkit"
-	ConfigDir = "/etc/buildkit"
-)
-
-// UserAddress typically returns /run/user/$UID/buildkit/buildkitd.sock
-func UserAddress() string {
-	//  pam_systemd sets XDG_RUNTIME_DIR but not other dirs.
-	xdgRuntimeDir := os.Getenv("XDG_RUNTIME_DIR")
-	if xdgRuntimeDir != "" {
-		dirs := strings.Split(xdgRuntimeDir, ":")
-		return "unix://" + filepath.Join(dirs[0], "buildkit", "buildkitd.sock")
-	}
-	return Address
-}
-
-// EnsureUserAddressDir sets sticky bit on XDG_RUNTIME_DIR if XDG_RUNTIME_DIR is set.
-// See https://github.com/opencontainers/runc/issues/1694
-func EnsureUserAddressDir() error {
-	xdgRuntimeDir := os.Getenv("XDG_RUNTIME_DIR")
-	if xdgRuntimeDir != "" {
-		dirs := strings.Split(xdgRuntimeDir, ":")
-		dir := filepath.Join(dirs[0], "buildkit")
-		if err := os.MkdirAll(dir, 0700); err != nil {
-			return err
-		}
-		return os.Chmod(dir, 0700|os.ModeSticky)
-	}
-	return nil
-}
-
-// UserRoot typically returns /home/$USER/.local/share/buildkit
-func UserRoot() string {
-	//  pam_systemd sets XDG_RUNTIME_DIR but not other dirs.
-	xdgDataHome := os.Getenv("XDG_DATA_HOME")
-	if xdgDataHome != "" {
-		dirs := strings.Split(xdgDataHome, ":")
-		return filepath.Join(dirs[0], "buildkit")
-	}
-	home := os.Getenv("HOME")
-	if home != "" {
-		return filepath.Join(home, ".local", "share", "buildkit")
-	}
-	return Root
-}
-
-// UserConfigDir returns dir for storing config. /home/$USER/.config/buildkit/
-func UserConfigDir() string {
-	xdgConfigHome := os.Getenv("XDG_CONFIG_HOME")
-	if xdgConfigHome != "" {
-		return filepath.Join(xdgConfigHome, "buildkit")
-	}
-	home := os.Getenv("HOME")
-	if home != "" {
-		return filepath.Join(home, ".config", "buildkit")
-	}
-	return ConfigDir
-}