Integrate goleak to tests

[begmaroman]

Description

Integrate goleak to tests

Changes include

• [ ] Bugfix (non-breaking change that solves an issue)
• [ ] Hotfix (change that solves an urgent issue, and requires immediate attention)
• [x] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (change that is not backwards-compatible and/or changes current functionality)

Checklist

• [x] I have assigned this PR to myself
• [x] I have added at least 1 reviewer
• [x] I have added the relevant labels
• [ ] I have updated the official documentation
• [ ] I have added sufficient documentation in code

Testing

• [x] I have tested this code with the official test suite
• [ ] I have tested this code manually