feat: recursive json object test

[samuelscheit]

No description provided.

[xnacly]

Could you provide any reasoning for this contribution and an integration into the existing testing / benchmarking code? I would also appreciate this contribution being in either go or python, go if included in the standard testing code and python if its a change to the benchmarking pipeline in /test.

[samuelscheit]

• Performance Testing: Deeply nested JSON objects are challenging for many parsers due to stack limitations or inefficient recursion handling. These tests ensure the JSON parser's ability to process extremely deep structures without stack overflow or memory inefficiencies.
  => Benefit: The performance insights gained can help identify bottlenecks or limitations in the parser.

• Standard compliance: This test ensures that libjson adheres to JSON standards when handling deep nesting, including maintaining structural integrity and parsing correctly to an equivalent in-memory representation.

[xnacly]

Please remove this file

[xnacly]

Also remove this please

[xnacly]

Merge this file with test/gen.py and add hyperfine calls for each of the depths, as seen in test/bench.sh