Support macos walltime without profiling in codspeed-cpp

[GuillaumeLagrange]

No description provided.

[codspeed-hq]

Merging this PR will improve performance by 15.61%

⚡ 6 improved benchmarks
✅ 454 untouched benchmarks

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	WallTime	BM_Vector_Reserve[10000]	36.1 µs	31.2 µs	+15.61%
⚡	WallTime	BM_Vector_Reserve[1000]	3.6 µs	3.2 µs	+13.4%
⚡	WallTime	BM_Vector_Reserve[100]	390.4 ns	350.6 ns	+11.34%
⚡	WallTime	BM_Vector_PushBack[10000]	39.5 µs	34.2 µs	+15.29%
⚡	WallTime	BM_Vector_PushBack[1000]	4.3 µs	3.7 µs	+14.32%
⚡	WallTime	BM_Vector_PushBack[100]	846.7 ns	741.2 ns	+14.23%

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_{Comparing cod-2459-be-able-to-run-all-integrations-on-macos (7146cb6) with main (1ed647a)¹}

Footnotes

1. No successful run was found on main (7146cb6) during the generation of this report, so 1ed647a was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩