Rails/MigrationClassName ignores acronyms (inflection rules)

[jalyna]

When using inflections, like:

# config/initializers/inflections.rb
ActiveSupport::Inflector.inflections(:en) do |inflect|
  inflect.acronym "OAuth"
end

this results in failures for past migrations that include the acronym OAuth in their class name like class RemoveUnusedOAuthScopeGrants.

---

Expected behavior

No cop should be raised.

Actual behavior

db/migrate/20210623095243_remove_unused_oauth_scope_grants.rb:1:7: C: [Correctable] Rails/MigrationClassName: Replace with RemoveUnusedOauthScopeGrants that matches the file name.
class RemoveUnusedOAuthScopeGrants < ActiveRecord::Migration[6.1]

Steps to reproduce the problem

Add

# config/initializers/inflections.rb
ActiveSupport::Inflector.inflections(:en) do |inflect|
  inflect.acronym "OAuth"
end

Create a migration that includes OAuth acronym in its class name

RuboCop version

1.26.0 (using Parser 3.1.1.0, rubocop-ast 1.16.0, running on ruby 3.1.1 x86_64-darwin20)
  - rubocop-performance 1.13.3
  - rubocop-rails 2.14.1