Align `case` / `when` indentation for Rubocop
Align `case` / `when` indentation for Rubocop

This fixes the following Rubocop offenses:

  ```
  activerecord/lib/active_record/query_logs.rb:96:9: C: [Correctable] Layout/CaseIndentation: Indent when as deep as case.
          when :legacy
          ^^^^
  activerecord/lib/active_record/query_logs.rb:98:9: C: [Correctable] Layout/CaseIndentation: Indent when as deep as case.
          when :sqlcommenter
          ^^^^
  ```

rails/rails,rails/rails,rails/rails,rails/rails