vendor: update buildkit to v0.16.0-rc1

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

vendor/github.com/moby/buildkit/errdefs/internal.go

@@ -0,0 +1,59 @@
+package errdefs
+
+import (
+	"errors"
+	"syscall"
+)
+
+type internalErr struct {
+	error
+}
+
+func (internalErr) System() {}
+
+func (err internalErr) Unwrap() error {
+	return err.error
+}
+
+type system interface {
+	System()
+}
+
+var _ system = internalErr{}
+
+func Internal(err error) error {
+	if err == nil {
+		return nil
+	}
+	return internalErr{err}
+}
+
+func IsInternal(err error) bool {
+	var s system
+	if errors.As(err, &s) {
+		return true
+	}
+
+	var errno syscall.Errno
+	if errors.As(err, &errno) {
+		if _, ok := isInternalSyscall(errno); ok {
+			return true
+		}
+	}
+	return false
+}
+
+func IsResourceExhausted(err error) bool {
+	var errno syscall.Errno
+	if errors.As(err, &errno) {
+		if v, ok := isInternalSyscall(errno); ok && v {
+			return v
+		}
+	}
+	return false
+}
+
+func isInternalSyscall(err syscall.Errno) (bool, bool) {
+	v, ok := syscallErrors()[err]
+	return v, ok
+}