Protect against commas and quotes in word arrays

[fofr]

A comma in a word array caused a subtle bug in Publisher:
alphagov/publisher#615

We encourage use of %w, we should protect against the risk of misuse.

Example offense that would have prevented bug:

Offenses:

app/services/publishing_api_workflow_bypass_publisher.rb:52:33: W: Lint/PercentStringArray: Within %w/%W, quotes and ',' are unnecessary and may be unwanted in the resulting strings. 
      .where(state: { "$nin" => %w(published, archived) })
                                ^^^^^^^^^^^^^^^^^^^^^^^

cc @whoojemaflip

[whoojemaflip]

👮