git: 5c7ba42d2e90..5f99da5545eb - vendor/libyaml - vendor branch updated

[Baptiste Daroussin]

The branch vendor/libyaml has been updated by bapt:

URL: https://cgit.FreeBSD.org/src/log/?id=5c7ba42d2e90..5f99da5545eb

5f99da5545eb libyaml: vendor import 0.2.5