[ECP-8518] Unset amqp in config to use default queue connection

[factorin-j]

Description

• remove amqp in queue xml config to use Magento's default (db) connection if amqp service is not installed.
• include additional admin message when using 'queue' notification processing
• add unit tests

Tested scenarios

• Tested using 2 Magento setups:
  • bin/magento setup:install with opensearch/elasticsearch only
  • bin/magento setup:install with --amqp-* options included (RabbitMQ installed).
• Unit test output:

docker compose exec -it php vendor/bin/phpunit -c dev/tests/unit/phpunit.xml app/code/Adyen/Payment/Test/Unit/Model/Queue/
PHPUnit 9.5.24 #StandWithUkraine

...                                                                                                                                                                                                                                                3 / 3 (100%)

Time: 00:00.047, Memory: 22.00 MB

OK (3 tests, 8 assertions)

Fixes #2031

[andreusala]

@factorin-j I have encountered an issue related to the adyen.notification consumer in Magento 2, where it attempts to use an amqp connection even though we have configured it to use cron. I came across a pull request that seems to address this problem.

Could you please provide an update on the development status of this PR? Is there a planned timeline for merging and releasing this fix? We are looking forward to a resolution to improve our current setup.

Thank you!

[factorin-j]

@andreusala, sorry for the delayed response. I'm not certain about the timeline for this PR. We might need to coordinate with @candemiralp on this matter. In the meantime, you can refer to this comment #2031 (comment) as an initial fix if you're encountering the same issue.

[candemiralp]

Hello @factorin-j,

Thank you for your contribution to solve this bug. This PR will be released soon.

Best Regards,
Can