Support custom primary key types in migration template

[bruno-costanzo]

FIXES #28

The only test I ran was configuring the PK in the Dummy APP, deleting the DB and all the migrations, and then reinstall the engine from scratch, which generated the correct migration:

class CreateRailsApiLoggerTable < ActiveRecord::Migration[8.0]
  def change
    create_table :inbound_request_logs, id: :uuid do |t|
      t.string :method
      t.string :path
      t.text :request_body
      t.text :response_body
      t.integer :response_code
      t.timestamp :started_at
      t.timestamp :ended_at
      t.references :loggable, index: true, polymorphic: true, type: :uuid
      t.timestamps null: false
    end

    create_table :outbound_request_logs, id: :uuid do |t|
      t.string :method
      t.string :path
      t.text :request_body
      t.text :response_body
      t.integer :response_code
      t.timestamp :started_at
      t.timestamp :ended_at
      t.references :loggable, index: true, polymorphic: true, type: :uuid
      t.timestamps null: false
    end
  end
end

[bruno-costanzo]

I don't believe the failing tests are related.