feat(chain-listener): integration tests for the chain listener [fixes NET-824, VM-615]

[gurinderu]

Description

Integration tests for the chain listener

Motivation

Increase the test coverage

Related Issue(s)

NET-824 VM-615

Checklist

• [ ] The code follows the project's coding conventions and style guidelines.
• [ ] All tests related to the changes have passed successfully.
• [ ] Documentation has been updated to reflect the changes (if applicable).
• [ ] All new and existing unit tests have passed.
• [ ] I have self-reviewed my code and ensured its quality.
• [ ] I have added/updated necessary comments to aid understanding.

Reviewer Checklist

• [ ] Code has been reviewed for quality and adherence to guidelines.
• [ ] Tests have been reviewed and are sufficient to validate the changes.
• [ ] Documentation has been reviewed and is up to date.
• [ ] Any questions or concerns have been addressed.

[linear[bot]]

NET-824 Chain listener integration tests

[linear[bot]]

VM-615 Nox: chain-listener integration tests