Test against RabbitMQ 4.2 alpha

Author: acogoluegnes

.github/workflows/test-rabbitmq-alphas.yml

@@ -15,7 +15,7 @@ jobs:
       matrix:
         rabbitmq-image:
           - pivotalrabbitmq/rabbitmq:v4.1.x-otp27
-          - pivotalrabbitmq/rabbitmq:main-otp27
+          - pivotalrabbitmq/rabbitmq:v4.2.x-otp27
     name:  Test against ${{ matrix.rabbitmq-image }}
     steps:
       - uses: actions/checkout@v5