chore: enable experimental free gil test #299

Performance Regression: -29.46%

❌ 6 regressed benchmarks
✅ 20 untouched benchmarks
⏩ 23 skipped benchmarks¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

	Mode	Benchmark	`BASE`	`HEAD`	Efficiency
❌	WallTime	`test_chains_found`	84.3 µs	98 µs	-13.93%
❌	WallTime	`test_no_chains`	627.9 µs	890.2 µs	-29.46%
❌	WallTime	`test_no_chain`	625.2 µs	826.3 µs	-24.34%
❌	WallTime	`test_deep_layers_large_graph_kept`	1.6 ms	2 ms	-21.76%
❌	WallTime	`test_find_upstream_modules`	2.7 ms	3.1 ms	-11.61%
❌	WallTime	`test_find_downstream_modules`	79.8 µs	92 µs	-13.23%

_{Comparing thepabloaguilar:issue-297-enable-free-gil-tests (9a3f289) with main (977b7f0)}

23 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩