test: add local dev container for consuming event-bus events

[pwnage101]

Launching the new container:

(enterprise-subsidy) ubuntu@ip-10-13-20-242:~/edx-repos/enterprise-subsidy$ make dev.up
docker-compose -f /home/ubuntu/edx-repos/devstack/docker-compose.yml up -d redis
[+] Running 1/0
 ✔ Container edx.devstack.redis  Running                                                                                                                                                                                        0.0s 
docker-compose up -d
[+] Running 4/4
 ✔ Container enterprise-subsidy.memcache                                            Running                                                                                                                                     0.0s 
 ✔ Container enterprise-subsidy.mysql80                                             Running                                                                                                                                     0.0s 
 ✔ Container enterprise-subsidy.consume_learner_credit_course_enrollment_lifecycle  Started                                                                                                                                     0.3s 
 ✔ Container enterprise-subsidy.app                                                 Running                                                                                                                                     0.0s 

Checking that the container is running and 1) started, 2) consumed an event, and 3) produced a new event:

(enterprise-subsidy) ubuntu@ip-10-13-20-242:~/edx-repos/enterprise-subsidy$ make consume_learner_credit_course_enrollment_lifecycle-logs
docker-compose logs -f --tail=500 consume_learner_credit_course_enrollment_lifecycle
enterprise-subsidy.consume_learner_credit_course_enrollment_lifecycle  | 2025-01-09 19:21:04,807 INFO 7 [edx_event_bus_kafka.internal.consumer] [user None] [ip None] [request_id None] consumer.py:284 - Running consumer for {'full_topic': 'dev-learner-credit-course-enrollment-lifecycle', 'consumer_group': 'learner_credit_course_enrollment_lifecycle_dev'}
...
enterprise-subsidy.consume_learner_credit_course_enrollment_lifecycle  | 2025-01-09 19:26:14,819 INFO 7 [edx_event_bus_kafka.internal.consumer] [user None] [ip None] [request_id None] consumer.py:513 - Message received from Kafka: topic=dev-learner-credit-course-enrollment-lifecycle, partition=0, offset=3, message_id=97848778-cebf-11ef-ac26-0242ac120013, key=b'\x00\x00\x00\x00\x01H31f0cc88-1daf-4d28-b862-70367a70838a', event_timestamp_ms=1736450774790
...
[edx_event_bus_kafka.internal.producer] [user None] [ip None] [request_id None] producer.py:244 - Message delivered to Kafka event bus: topic=dev-enterprise-subsidies-transaction-lifecycle, partition=0, offset=21, message_id=97a1cd4c-cebf-11ef-a6d5-0242ac120020, key=b'\x00\x00\x00\x00\x01Heec30573-1aa7-4a0f-abff-31c7e5873ac8'