Setup rabbitmq in Integration tests.

.github/workflows/integration.yaml

@@ -2,8 +2,8 @@ name: Integration
 on: [push, pull_request]
 env:
   GALAXY_TEST_DBURI: 'postgres://postgres:postgres@localhost:5432/galaxy?client_encoding=utf8'
+  GALAXY_TEST_AMQP_URL: 'amqp://rabbitmq:5672//'
 jobs:
-
   test:
     name: Test
     runs-on: ubuntu-18.04
@@ -20,6 +20,10 @@ jobs:
           POSTGRES_DB: postgres
         ports:
           - 5432:5432
+      rabbitmq:
+        image: rabbitmq
+        ports:
+          - 5672:5672
     steps:
     - name: Prune unused docker image, volumes and containers
       run: docker system prune -a -f