Update dependencies

vendor/tailscale.com/util/sysresources/memory_linux.go

@@ -0,0 +1,19 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build linux
+
+package sysresources
+
+import "golang.org/x/sys/unix"
+
+func totalMemoryImpl() uint64 {
+	var info unix.Sysinfo_t
+
+	if err := unix.Sysinfo(&info); err != nil {
+		return 0
+	}
+
+	// uint64 casts are required since these might be uint32s
+	return uint64(info.Totalram) * uint64(info.Unit)
+}