Rails/ContentTag incorrectly autocorrects interpolated string inside config/puma.rb

[nevans]

Expected behavior

1. config/puma.rb is never a rails view or helper and should be ignored by Rails/ContentTag
2. Auto correct should not convert tag "dynamic-#{interpolated}-string", even if it were in a rails view

For context: https://puma.io/puma/Puma/DSL.html#tag-instance_method

Actual behavior

1. config/puma.rb is reported and autocorrected by Rails/ContentTag
2. Auto correct converted tag "dynamic-#{interpolated}-string" into tag.dynamic-#{interpolated}-string

Steps to reproduce the problem

1. Inside a rails project, add the following to config/puma.rb:

env_cfg = ENV.fetch("RAILS_ENV") { "development" }
tag "app-name-#{env_cfg}"

2. Run rubocop -a --only Rails/ContentTag
3. ????
4. Profit!!!!

RuboCop version

$ [bundle exec] rubocop -V
1.25.1 (using Parser 3.1.0.0, rubocop-ast 1.15.1, running on ruby 2.6.8 x86_64-linux)
  - rubocop-performance 1.13.2
  - rubocop-rails 2.13.2