Fix nested container tests

[shahabi8]

Change Description

This PR fixes nested container tests for pair and map containers. Map can be defined through key and value like this: [{"key":10, "value":100],{"key":10, "value":100}] Pair can be defined through first and second like this: ["first":30, "second":{"first":301, "second":302}]

Change Type

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• [ ] Documentation
• [ ] Stability bug fix
• [x] Other
• [ ] Other - special case

Testing Changes

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• [ ] New Tests
• [x] Existing Tests
• [ ] Test Framework
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Consensus Changes

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API Changes

• [ ] API Changes

Documentation Additions

• [ ] Documentation Additions