DigitalOcean's mysql instance set the default config "sql_require_primary_key=true", it will cause `./bin/console doctrine:schema:update --dump-sql` throw an Exception:

```
In Connection.php line 33:
                                                                                                                                                                                                                           
  [PDOException (HY000)]                                                                                                                                                                                                   
  SQLSTATE[HY000]: General error: 3750 Unable to create or change a table without a primary key, when the system variable 'sql_require_primary_key' is set. Add a primary key to the table or unset this variable to avoi  
  d this message. Note that tables without a primary key can cause performance problems in row-based replication, so please consult your DBA before changing this setting.                                                 
                                                                                                                                                                                                                           

Exception trace:
  at /root/symfony-app/vendor/doctrine/dbal/src/Driver/PDO/Connection.php:33
 PDO->exec() at /root/symfony-app/vendor/doctrine/dbal/src/Driver/PDO/Connection.php:33
 Doctrine\DBAL\Driver\PDO\Connection->exec() at /root/symfony-app/vendor/doctrine/dbal/src/Driver/Middleware/AbstractConnectionMiddleware.php:46
 Doctrine\DBAL\Driver\Middleware\AbstractConnectionMiddleware->exec() at /root/symfony-app/vendor/doctrine/dbal/src/Logging/Connection.php:50
 Doctrine\DBAL\Logging\Connection->exec() at /root/symfony-app/vendor/doctrine/dbal/src/Driver/Middleware/AbstractConnectionMiddleware.php:46
 Doctrine\DBAL\Driver\Middleware\AbstractConnectionMiddleware->exec() at /root/symfony-app/vendor/symfony/doctrine-bridge/Middleware/Debug/DBAL3/Connection.php:73
 Symfony\Bridge\Doctrine\Middleware\Debug\DBAL3\Connection->exec() at /root/symfony-app/vendor/doctrine/dbal/src/Driver/Middleware/AbstractConnectionMiddleware.php:46
 Doctrine\DBAL\Driver\Middleware\AbstractConnectionMiddleware->exec() at /root/symfony-app/bundles/DoctrineEnhanceBundle/src/Middleware/LogConnection.php:64
 DoctrineEnhanceBundle\Middleware\LogConnection->exec() at /root/symfony-app/vendor/doctrine/dbal/src/Connection.php:1206
 Doctrine\DBAL\Connection->executeStatement() at /root/symfony-app/vendor/doctrine/dbal/src/Schema/AbstractSchemaManager.php:1617
 Doctrine\DBAL\Schema\AbstractSchemaManager->_execSql() at /root/symfony-app/vendor/doctrine/dbal/src/Schema/AbstractSchemaManager.php:930
 Doctrine\DBAL\Schema\AbstractSchemaManager->createTable() at /root/symfony-app/vendor/symfony/doctrine-bridge/SchemaListener/AbstractSchemaListener.php:34
 Symfony\Bridge\Doctrine\SchemaListener\AbstractSchemaListener::Symfony\Bridge\Doctrine\SchemaListener\{closure}() at /root/symfony-app/src/Messenger/DoctrineConnection.php:338
 App\Messenger\DoctrineConnection->configureSchema() at /root/symfony-app/vendor/symfony/doctrine-messenger/Transport/DoctrineTransport.php:89
 Symfony\Component\Messenger\Bridge\Doctrine\Transport\DoctrineTransport->configureSchema() at /root/symfony-app/vendor/symfony/doctrine-bridge/SchemaListener/MessengerTransportDoctrineSchemaListener.php:43
 Symfony\Bridge\Doctrine\SchemaListener\MessengerTransportDoctrineSchemaListener->postGenerateSchema() at /root/symfony-app/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php:63
 Symfony\Bridge\Doctrine\ContainerAwareEventManager->dispatchEvent() at /root/symfony-app/vendor/doctrine/orm/src/Tools/SchemaTool.php:421
 Doctrine\ORM\Tools\SchemaTool->getSchemaFromMetadata() at /root/symfony-app/vendor/doctrine/orm/src/Tools/SchemaTool.php:980
 Doctrine\ORM\Tools\SchemaTool->getUpdateSchemaSql() at /root/symfony-app/vendor/doctrine/orm/src/Tools/Console/Command/SchemaTool/UpdateCommand.php:92
 Doctrine\ORM\Tools\Console\Command\SchemaTool\UpdateCommand->executeSchemaCommand() at /root/symfony-app/vendor/doctrine/orm/src/Tools/Console/Command/SchemaTool/AbstractCommand.php:44
 Doctrine\ORM\Tools\Console\Command\SchemaTool\AbstractCommand->doExecute() at /root/symfony-app/vendor/doctrine/orm/src/Tools/Console/CommandCompatibility.php:32
 Doctrine\ORM\Tools\Console\Command\SchemaTool\AbstractCommand->execute() at /root/symfony-app/vendor/symfony/console/Command/Command.php:326
 Symfony\Component\Console\Command\Command->run() at /root/symfony-app/vendor/symfony/console/Application.php:1096
 Symfony\Component\Console\Application->doRunCommand() at /root/symfony-app/vendor/symfony/framework-bundle/Console/Application.php:126
 Symfony\Bundle\FrameworkBundle\Console\Application->doRunCommand() at /root/symfony-app/vendor/symfony/console/Application.php:324
 Symfony\Component\Console\Application->doRun() at /root/symfony-app/vendor/symfony/framework-bundle/Console/Application.php:80
 Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at /root/symfony-app/vendor/symfony/console/Application.php:175
 Symfony\Component\Console\Application->run() at /root/symfony-app/vendor/symfony/runtime/Runner/Symfony/ConsoleApplicationRunner.php:49
 Symfony\Component\Runtime\Runner\Symfony\ConsoleApplicationRunner->run() at /root/symfony-app/vendor/autoload_runtime.php:29
 require_once() at /root/symfony-app/bin/console:14
```

This commit will change the code style in `getIsSameDatabaseChecker()`, use doctrine SchemaManager to create/drop the temp table, make it work on most case database instances.