Symfony version(s) affected: 5.1.0@beta

Description

Since #35422 we split transport in dedicated package. Nice addition ! But we require doctrine/messenger by default ... and this one will install doctrine dbal.

I have not dbal installed for now and here are the new package installed:

I guess we made this change to keep BC. But it is very annoying. Before this change I had only doctrine messenger part, now I have all doctrine stuff.

How to reproduce

Install symfony/messenger without doctrine pack.

I should admit I have no idea how fix this issue.