go.mod,wgengine/magicsock: pull wireguard-go fix for roaming endpoints (#20118)

Bumps wireguard-go pin to include the roaming endpoints fix, and
two internal enhancements.

Pulls stock wireguard-go for non-tailscale simulation in tests,
to use its endpoint discovery mechanism.

Updates #20082

Change-Id: I2ff282cb7fe4ab099ce5e780a1d40ae86a6a6964
Signed-off-by: Alex Valiushko <alexvaliushko@tailscale.com>

wgengine/wgcfg/device.go

@@ -15,9 +15,7 @@ import (
 
 // NewDevice returns a wireguard-go Device configured for Tailscale use.
 func NewDevice(tunDev tun.Device, bind conn.Bind, logger *device.Logger) *device.Device {
-	ret := device.NewDevice(tunDev, bind, logger)
-	ret.DisableSomeRoamingForBrokenMobileSemantics()
-	return ret
+	return device.NewDevice(tunDev, bind, logger)
 }
 
 // ReconfigDevice replaces the existing device configuration with cfg.