Include serialization in benchmarking

[saulshanabrook]

I extracted on line from #520 to see how much adding serialization adds to our benchmark and make that one clearer how much performance it gains!

[codspeed-hq]

CodSpeed Performance Report

Merging #521 will degrade performances by 99.18%

_{Comparing saulshanabrook:benchmark-serialization (e5a43ea) with main (215714e)}

Summary

❌ 5 (👁 5) regressions
✅ 5 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
👁	cykjson	378.1 ms	8,065.9 ms	-95.31%
👁	eggcc-extraction	2.2 s	29.6 s	-92.51%
👁	extract-vec-bench	74 ms	9,050.1 ms	-99.18%
👁	math-microbenchmark	4.3 s	55.7 s	-92.35%
👁	python_array_optimize	3.9 s	60.9 s	-93.67%