feat: enable rayon when reading `PrefixRecord`'s #410

Job	Run time
pre-commit	38s
Cargo Machete	1m 5s
determine changes	16s
build binary \| linux x86_64	3m 41s
build binary \| macos aarch64	4m 12s
build binary \| windows aarch64	5m 9s
build binary \| macos x86_64	0s
build binary \| windows x86_64	4m 43s
cargo test \| ubuntu	4m 38s
cargo test \| macos aarch64	5m 4s
cargo test \| macos x86_64	0s
cargo test \| windows	8m 40s
cargo rustdoc \| ubuntu	1m 23s
cargo fmt \| ubuntu	15s
cargo clippy \| ubuntu	47s
pytest integration \| linux x86_64	9m 9s
test wheel installation \| linux x86_64 / Test Installation of Common Wheels \| linux-x86_64	1m 57s
pytest integration \| macos aarch64	4m 13s
test wheel installation \| macos aarch64 / Test Installation of Common Wheels \| macos-aarch64	2m 24s
pytest integration \| windows x86_64	4m 41s
test wheel installation \| windows x86_64 / Test Installation of Common Wheels \| windows-x86_64	3m 19s
	1h 6m 14s

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