Test

perf: try `pread` like `zarrs`'s use of `File::read_exact_at` #7498

Job	Run time
py=3.12-min_deps	6m 13s
doctests	1m 2s
Benchmark smoke test	8m 0s
py=3.14-upstream	8m 6s
os=ubuntu-latest, py=3.12, deps=optional	7m 6s
os=ubuntu-latest, py=3.14, deps=minimal	4m 6s
os=macos-latest, py=3.14, deps=optional	4m 58s
os=macos-latest, py=3.12, deps=optional	9m 49s
os=ubuntu-latest, py=3.14, deps=optional	4m 20s
os=ubuntu-latest, py=3.12, deps=minimal	6m 7s
os=ubuntu-latest, py=3.13, deps=minimal	6m 51s
os=windows-latest, py=3.12, deps=optional	11m 25s
os=windows-latest, py=3.14, deps=optional	7m 33s
os=ubuntu-latest, py=3.13, deps=optional	7m 52s
Test complete	3s
	1h 33m 31s

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