GHSA-c2g3-c4gc-w5wg: ReDoS in DotVVM routing

This impacts users which use multiple unconstrained route parameters not separated by a /. For instance, the following code is vulnerable:

var route = new DotvvmRoute("edit/{a}-{b}-{c}/done", null, "testpage", null, null, configuration);

var adversarialInput = "edit/" + new string('-', 32000);
route.IsMatch(adversarialInput, out _);