Define contract with namespace but got TypeError when use errors(full: true)

[elct9620]

Describe the bug

I have a contract class add config.namespace and try to use .errors(full: true) but got the TypeError

/Users/elct9620/.rbenv/versions/3.3.2/lib/ruby/gems/3.3.0/gems/dry-schema-1.13.4/lib/dry/schema/messages/namespaced.rb:67:in `sub': wrong argument type Symbol (expected Regexp) (TypeError)

            key.sub(config.top_namespace, "#{config.top_namespace}.#{namespace}")
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

To Reproduce

I use it in the dry-rails but get the same result with the below code

# frozen_string_literal: true

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'

  gem 'i18n'
  gem 'dry-validation', '~> 1.10'
end

require 'dry/validation'
require 'i18n'

class ApplicationContract < Dry::Validation::Contract
  config.messages.top_namespace = :contracts
  config.messages.backend = :i18n
end

module Example
  # :nodoc:
  class GroupContract < ApplicationContract
    config.messages.namespace = :example

    params do
      required(:name).filled(:string)
    end
  end
end

contract = Example::GroupContract.new
pp contract.call(name: true).errors(full: true)

Expected behavior

The full error message is displayed correctly.

My environment

• Affects my production application: Yes
• Ruby version: 3.3
• OS: macOS / Ubuntu