Add parentheses in allowed column pattern for commented columns

[m11o]

This PR adds parentheses in allowed column pattern for commented columns.

The annotation of a model with commented columns is not updated even if the column will be updated.

Steps to reproduce

1. Create a new Rails application and use MySQL or PostgreSQL database
2. Add annotate_models gem in Gemfile
3. Create a model with a commented column
   • e.g.

   • create_table :users do |t|
       t.string :name, comment: 'first_name + last_name'
       t.string :email, null: false
     
       t.timestamps
     end
     

4. Change the commented column from default null to non-null.
   • e.g.

   • change_column_null :users, :name, false
     

5. The annotation of the model isn't updated

   • Model files unchanged.
     

   • but, schema.rb is updated.

   • -ActiveRecord::Schema[7.0].define(version: 2023_12_03_034600) do
     +ActiveRecord::Schema[7.0].define(version: 2023_12_03_040324) do
        create_table "users", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     -    t.string "name", comment: "first_name + last_name"
     +    t.string "name", null: false, comment: "first_name + last_name"
          t.string "email", null: false
          t.datetime "created_at", null: false
          t.datetime "updated_at", null: false