Router does not correctly handle route with ":" in it

[miai10]

Hello!

I have a case where the swagger file contains routes like this "/allow/{serverName}/tokenlist:add". : is an allowed character in the path (see https://datatracker.ietf.org/doc/html/rfc3986#section-3.3) but denco router uses : as param delimiters without taking into account the ones coming from the path itself, for example here: https://github.com/go-openapi/runtime/blob/master/middleware/router.go#L474.

Also, it seems strange for me that the denco router is used to create the records because it needs to detect the parameters again using a new format, whereas before creating the denco record we already know the parameters from the swagger info.

Any suggestions on how to work around this issue?

Thanks!