Update dependencies

vendor/github.com/tailscale/web-client-prebuilt/embed.go

@@ -0,0 +1,21 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+// Package prebuilt provides the pre-built artifacts for the web client.
+package prebuilt
+
+import (
+	"embed"
+	"io/fs"
+)
+
+//go:embed build
+var embedded embed.FS
+
+// FS returns a filesystem containing build artifacts for the web client.
+func FS() fs.FS {
+	// ignore error, since we know build directory will always exist,
+	// otherwise go:embed above would fail
+	sub, _ := fs.Sub(embedded, "build")
+	return sub
+}