Revert r566084, fixed in r567245

• Bump PORTREVISION for dependency change

chef-utils is an indirect dependency via mixlib-shellout [1].
I've fixed the problem in r567245.

In order to keep the dependency correct [2], I reverted r566084
which added rubygem-chef-utils to the wrong place.

[1] https://rubygems.org/gems/mixlib-shellout/versions/3.2.2
[2] https://rubygems.org/gems/mdl/versions/0.11.0

PR: 252836
Reference: https://bugs.FreeBSD.org/bugzilla/show_bug.cgi?id=252836#c7
Approved by: portmgr (blanket)