[cofin]

Summary

Adds a clientless RabbitMQ 4.3 AMQP broker service (rabbitmq_service) that validates readiness and provisions virtual hosts using the container-bundled rabbitmq-diagnostics, rabbitmqctl, and rabbitmqadmin CLIs without requiring a Python AMQP client dependency.

Key Changes

RabbitMQ Broker Service (pytest_databases.docker.rabbitmq)

• Container-Native CLI Readiness: Checks broker health and AMQP listener readiness via rabbitmq-diagnostics inside the running container and keeps the management port internal.
• Service Metadata & AMQP URL: Exposes RabbitMQService with custom credentials, virtual host, and URL-encoded amqp_url formatting.
• Worker Isolation: Supports shared-broker per-worker virtual host provisioning (database isolation via rabbitmqctl add_vhost / set_permissions) and dedicated per-worker broker containers (server isolation) via xdist_rabbitmq_isolation_level.

Testing, Documentation & CI

• Unit & Integration Coverage: Adds unit and integration coverage for clientless module import, RabbitMQService URL encoding, queue/exchange publish and consume via rabbitmqadmin, and pytest-xdist virtual host isolation.
• Documentation & Selective CI: Adds docs/supported-databases/rabbitmq.rst and registers rabbitmq in .github/ci/provider-groups.json.

Closes #150

[codecov-commenter]

Codecov Report

❌ Patch coverage is 80.89888% with 17 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (feat/pubsub-service@ade8d65). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/pytest_databases/docker/rabbitmq.py	80.89%	12 Missing and 5 partials ⚠️

Additional details and impacted files

@@                  Coverage Diff                  @@
##             feat/pubsub-service    #158   +/-   ##
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  Coverage                       ?   8.16%           
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  Files                          ?      28           
  Lines                          ?    3060           
  Branches                       ?     254           
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  Hits                           ?     250           
  Misses                         ?    2741           
  Partials                       ?      69           

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