Symfony version(s) affected: 5.0.8

Description
I installed the messenger component and setup the default transport to be doctrine. I left the auto_setup config to true and the messenger_messages table was created and thats all working fine.

The issue I've got is when I next ran php bin/console make:migration as I'd added a new Entity, the migration dropped the messenger_messages table:

public function up(Schema $schema) : void
    {
        // this up() migration is auto-generated, please modify it to your needs
     
       // Redacted queries to add my entity here

        $this->addSql('DROP TABLE messenger_messages');
    }

How to reproduce

• Install messenger composer require symfony/messenger
• Set doctrine://default as the messenger transport
• Push a message to the queue
• See that the table messenger_messages is created
• Add an entity via the cli
• Run php bin/console make:migration
• See that the latest migration has a drop statement for the messenger_messages table

Possible Solution
If auto_setup is true then exclude the messenger_messages from any future migrations.