Update dependencies

vendor/github.com/google/nftables/xt/unknown.go

@@ -0,0 +1,17 @@
+package xt
+
+// Unknown represents the bytes Info payload for unknown Info types where no
+// dedicated match/target info type has (yet) been defined.
+type Unknown []byte
+
+func (x *Unknown) marshal(fam TableFamily, rev uint32) ([]byte, error) {
+	// In case of unknown payload we assume its creator knows what she/he does
+	// and thus we don't do any alignment padding. Just take the payload "as
+	// is".
+	return *x, nil
+}
+
+func (x *Unknown) unmarshal(fam TableFamily, rev uint32, data []byte) error {
+	*x = data
+	return nil
+}