Make trilogy tests pass on MariaDB

* `supports_json?` always return false on mariadb so the test needs to
stub.
* to_a(as: :hash) is not supported on trilogy. And we should be dealing
with ActiveRecord::Result objects anyway.

Gemfile.lock

@@ -1,10 +1,10 @@
 GIT
   remote: https://github.com/github/trilogy.git
-  revision: 8e4ae98569c12894da9bcbee5edb32b76068dbfd
+  revision: a1f46bbb79f866c157ead6d483474670bdb17334
   branch: main
   glob: contrib/ruby/*.gemspec
   specs:
-    trilogy (2.4.0)
+    trilogy (2.4.1)
 
 GIT
   remote: https://github.com/matthewd/websocket-client-simple.git

activerecord/test/cases/adapters/trilogy/trilogy_adapter_test.rb

@@ -29,7 +29,9 @@ class TrilogyAdapterTest < ActiveRecord::TrilogyTestCase
   end
 
   test "#supports_json answers true without Maria DB and greater version" do
-    assert @conn.supports_json?
+    @conn.stub(:mariadb?, false) do
+      assert_equal true, @conn.supports_json?
+    end
   end
 
   test "#supports_json answers false without Maria DB and lesser version" do

activerecord/test/cases/migration_test.rb

@@ -1465,13 +1465,12 @@ def test_default_functions_on_columns
         if current_adapter?(:PostgreSQLAdapter)
           assert_equal "gen_random_uuid()", column(:name).default_function
           Person.connection.execute("INSERT INTO delete_me DEFAULT VALUES")
-          person_data = Person.connection.execute("SELECT * FROM delete_me ORDER BY id DESC").to_a.first
         else
           assert_equal "uuid()", column(:name).default_function
           Person.connection.execute("INSERT INTO delete_me () VALUES ()")
-          person_data = Person.connection.execute("SELECT * FROM delete_me ORDER BY id DESC").to_a(as: :hash).first
         end
 
+        person_data = Person.connection.select_one("SELECT * FROM delete_me ORDER BY id DESC")
         assert_match(/\A(.+)-(.+)-(.+)-(.+)\Z/, person_data.fetch("name"))
       end
     end