In real-world usage sending and receiving messages in the AMQP client (AMQP Manager) would be in different threads.
This diff changes sending messages from another than the main thread. Listening (message pop) is in blocking mode in the main thread without changes.
Related Linear task: [[ https://linear.app/comm/issue/ENG-1491/deploy-and-ci-testing-related-fixes | ENG-1491 ]]