Update

vendor/tailscale.com/tka/key.go

@@ -1,4 +1,4 @@
-// Copyright (c) Tailscale Inc & AUTHORS
+// Copyright (c) Tailscale Inc & contributors
 // SPDX-License-Identifier: BSD-3-Clause
 
 package tka
@@ -7,6 +7,7 @@ import (
 	"crypto/ed25519"
 	"errors"
 	"fmt"
+	"maps"
 
 	"tailscale.com/types/tkatype"
 )
@@ -31,7 +32,7 @@ func (k KeyKind) String() string {
 	}
 }
 
-// Key describes the public components of a key known to network-lock.
+// Key describes the public components of a key known to tailnet-lock.
 type Key struct {
 	Kind KeyKind `cbor:"1,keyasint"`
 
@@ -64,9 +65,7 @@ func (k Key) Clone() Key {
 
 	if k.Meta != nil {
 		out.Meta = make(map[string]string, len(k.Meta))
-		for k, v := range k.Meta {
-			out.Meta[k] = v
-		}
+		maps.Copy(out.Meta, k.Meta)
 	}
 
 	return out
@@ -105,8 +104,6 @@ func (k Key) Ed25519() (ed25519.PublicKey, error) {
 	}
 }
 
-const maxMetaBytes = 512
-
 func (k Key) StaticValidate() error {
 	if k.Votes > 4096 {
 		return fmt.Errorf("excessive key weight: %d > 4096", k.Votes)