RFS: golang-github-xhit-go-str2duration -- Convert string to duration in golang

[tous <touss@protonmail.com>]

Hi,

I am looking for a sponsor for golang-github-xhit-go-str2duration:
https://salsa.debian.org/go-team/packages/golang-github-xhit-go-str2duration

This package is now a dependency of golang-gopkg-alecthomas-kingpin.v2 which is a dependency of probe-cli.

Regards,
-- 
tous