fix/core hooks

[adriencaccia]

• test: refactor core mocks
• fix: make sure teardown is called only once after all the benchmarks ran

[codspeed-hq]

CodSpeed Performance Report

Merging #23 will degrade performances by 94.08%

_{Comparing fix/core-hooks (cd532fd) with main (1911138)}

Summary

⚡ 3 improvements
❌ 5 (👁 3) regressions
✅ 56 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	main	fix/core-hooks	Change
❌	switch 1	18.8 µs	316.6 µs	-94.08%
❌	switch 1	18.9 µs	316 µs	-94.02%
⚡	switch 2	20.3 µs	17.7 µs	+14.94%
👁	test async baz 100	962.5 µs	1,279.1 µs	-24.75%
⚡	switch 2	20.3 µs	17.7 µs	+14.78%
👁	test async baz 100	1.2 ms	2.1 ms	-44.35%
⚡	test async baz 10	2.2 ms	1.4 ms	+52.02%
👁	test_recursive_fibo_10	93.9 µs	389.7 µs	-75.89%

[art049]

Check variance with this fix before merging