Fixed Connection Leak for RabbitMQ

[HesamKashefi]

What this PR does / why we need it: The connection leak in RabbitMQ Health Checks made this library unusable

Which issue(s) this PR fixes: The connection leak in RabbitMQ

Please reference the issue this PR will close: #2364

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• [ ] Code compiles correctly
• [ ] Created/updated tests
• [ ] Unit tests passing
• [ ] End-to-end tests passing
• [ ] Extended the documentation
• [ ] Provided sample for the feature