Update CodeNarc to 1.6.1

[php-coder]

See https://github.com/CodeNarc/CodeNarc/blob/master/CHANGELOG.md

• 1.0
• 1.1
• 1.2
• 1.2.1
• 1.3
• 1.4
• 1.5
• 1.6
• 1.6.1