Add CAR and CID benchmarks

[MarshalX]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #20 will not alter performance

_{Comparing add-car-and-cids-benchmarks (4946bce) with main (71fa16b)}

Summary

✅ 190 untouched benchmarks

🆕 2 new benchmarks

Benchmarks breakdown

	Benchmark	main	add-car-and-cids-benchmarks	Change
🆕	test_dag_cbor_decode_torture_cids	N/A	1 s	N/A
🆕	test_decode_car	N/A	7.1 s	N/A