Update

vendor/tailscale.com/util/clientmetric/omit.go

@@ -1,4 +1,4 @@
-// Copyright (c) Tailscale Inc & AUTHORS
+// Copyright (c) Tailscale Inc & contributors
 // SPDX-License-Identifier: BSD-3-Clause
 
 //go:build ts_omit_clientmetrics
@@ -26,6 +26,9 @@ func WritePrometheusExpositionFormat(any) {}
 
 var zeroMetric Metric
 
-func NewCounter(string) *Metric          { return &zeroMetric }
-func NewGauge(string) *Metric            { return &zeroMetric }
-func NewAggregateCounter(string) *Metric { return &zeroMetric }
+func NewCounter(string) *Metric                   { return &zeroMetric }
+func NewGauge(string) *Metric                     { return &zeroMetric }
+func NewAggregateCounter(string) *Metric          { return &zeroMetric }
+func NewCounterFunc(string, func() int64) *Metric { return &zeroMetric }
+
+func ResetForTest(any) {}