Fix tests for Rails main

Author: andyw8

test/ruby_lsp_rails/runner_client_test.rb

@@ -33,11 +33,16 @@ class RunnerClientTest < ActiveSupport::TestCase
 
       test "#model returns information for the requested model" do
         # These columns are from the schema in the dummy app: test/dummy/db/schema.rb
+        default_age = if Gem::Version.new(::Rails.version) >= Gem::Version.new("8.0.1")
+          0
+        else
+          "0"
+        end
         columns = [
           ["id", "integer", nil, false],
           ["first_name", "string", "", true],
           ["last_name", "string", nil, true],
-          ["age", "integer", "0", true],
+          ["age", "integer", default_age, true],
           ["created_at", "datetime", nil, false],
           ["updated_at", "datetime", nil, false],
           ["country_id", "integer", nil, false],