tsweb: export go_version in standard expvar vars
For monitoring.
func init() {
expvar.Publish("process_start_unix_time", expvar.Func(func() any { return timeStart.Unix() }))
expvar.Publish("version", expvar.Func(func() any { return version.Long }))
+ expvar.Publish("go_version", expvar.Func(func() any { return runtime.Version() }))
expvar.Publish("counter_uptime_sec", expvar.Func(func() any { return int64(Uptime().Seconds()) }))
expvar.Publish("gauge_goroutines", expvar.Func(func() any { return runtime.NumGoroutine() }))
}
