Register JWT type on import

protocol/meshcore/crypto/jwt/jwt.go

@@ -9,6 +9,12 @@ import (
 	"github.com/golang-jwt/jwt/v5"
 )
 
+func init() {
+	jwt.RegisterSigningMethod(SigningMethod.Alg(), func() jwt.SigningMethod {
+		return SigningMethod
+	})
+}
+
 var SigningMethod jwt.SigningMethod
 
 func init() {