Fix DAG-CBOR map keys order for encoding and decoding

[MarshalX]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #18 will improve performances by 41.51%

_{Comparing fix-map-keys-order (e2d9155) with main (10e190d)}

Summary

⚡ 3 improvements
✅ 59 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	fix-map-keys-order	Change
⚡	test_dag_cbor_encode_real_data[citm_catalog.json]	162.6 ms	125.3 ms	+29.78%
⚡	test_dag_cbor_encode_real_data[github.json]	6.1 ms	4.8 ms	+27.12%
⚡	test_dag_cbor_encode_real_data[twitter.json]	56.2 ms	39.7 ms	+41.51%

[MarshalX]

ofc perf degradation because of new additional checks and sorts are here too. 3-7% for both encoding and decoding. you can see it in the detailed CodSpeed report