Update github.com/duo-labs/webauthn commit hash to 81aea48

This MR contains the following updates:

Package	Type	Update	Change
github.com/duo-labs/webauthn	require	digest	1daaee8 -> 81aea48

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go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/bbrks/wrap/v2 v2.5.0
 	github.com/cenkalti/backoff/v4 v4.1.2
 	github.com/coreos/go-systemd/v22 v22.3.2
-	github.com/duo-labs/webauthn v0.0.0-20200714211715-1daaee874e43
+	github.com/duo-labs/webauthn v0.0.0-20220122034320-81aea484c951
 	github.com/emersion/go-textwrapper v0.0.0-20200911093747-65d896831594
 	github.com/fxamacker/cbor/v2 v2.2.0
 	github.com/go-asn1-ber/asn1-ber v1.5.3