Update go.mod and vendor

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

@@ -1,31 +0,0 @@
-package appdefaults
-
-import (
-	"os"
-	"path/filepath"
-)
-
-const (
-	Address = "npipe:////./pipe/buildkitd"
-)
-
-var (
-	Root      = filepath.Join(os.Getenv("ProgramData"), "buildkitd", ".buildstate")
-	ConfigDir = filepath.Join(os.Getenv("ProgramData"), "buildkitd")
-)
-
-func UserAddress() string {
-	return Address
-}
-
-func EnsureUserAddressDir() error {
-	return nil
-}
-
-func UserRoot() string {
-	return Root
-}
-
-func UserConfigDir() string {
-	return ConfigDir
-}