Update go-hugo to a recent version

[thenktor]

Hi,

please update go-hugo to "current" version: v0.136.3

Version 0.125 is quite outdated.

Thanks!

[jperkin]

I updated it to 0.136.4 just now. We're always on the lookout for new maintainers who can keep up with software that is frequently updated, so if you're interested please get in touch!