fix(go.sum): update ResolveSpec dependency to v1.0.87

vendor/mellium.im/sasl/xor.go

@@ -0,0 +1,26 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build !go1.20
+
+package sasl
+
+// TODO: remove all the specialized XOR code and use "crypto/subtle".XORBytes
+// when Go v1.21 comes out. For more information see:
+// https://mellium.im/issue/338
+
+func goXORBytes(dst, x, y []byte) int {
+	n := len(x)
+	if len(y) < n {
+		n = len(y)
+	}
+	if n == 0 {
+		return 0
+	}
+	if n > len(dst) {
+		panic("subtle.XORBytes: dst too short")
+	}
+	xorBytes(&dst[0], &x[0], &y[0], n) // arch-specific
+	return n
+}