build(deps): update dependency go to v1.22.6 (#268)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/go-webauthn/webauthn
 
 go 1.22
 
-toolchain go1.22.5
+toolchain go1.22.6
 
 require (
 	github.com/fxamacker/cbor/v2 v2.7.0