Request to do a minor version bump so that the vcpkg package can be updated to an up-to-date version of Argh!

[carljohnson93]

Hi! Thank you for your efforts on making this nice lib! I've come across this library yesterday, and immediately stumbled upon the following issue.
I wanted to use parser::params overload that takes option name, so that I could iterate over parameters that were specified multiple times. To my surprise the code didn't compile, and after digging a little I found that vcpkg ships argh on tag v1.3.2 which doesn't have commit that adds this overload of params function.
If I understand correctly, to request vcpkg maintainers to update a package, you have to provide specific version number, you can't just request to use latest commit hash (I'm not entirely sure though).
Is bumping version number possible?