feat: add variant config to `[workspace.build-variants]` (#2634) #94

Job	Run time
pre-commit	42s
determine changes	8s
Cargo Machete	1m 9s
cargo rustdoc \| ubuntu	1m 1s
cargo fmt \| ubuntu	16s
cargo test \| ubuntu	4m 6s
cargo test \| macos aarch64	6m 37s
cargo clippy \| ubuntu	49s
cargo test \| macos x86_64	9m 0s
build binary \| linux x86_64	2m 33s
build binary \| macos x86_64	7m 25s
build binary \| macos aarch64	3m 3s
build binary \| windows aarch64	3m 51s
cargo test \| windows	7m 24s
build binary \| windows x86_64	3m 47s
pytest integration \| linux x86_64	9m 43s
test wheel installation \| linux x86_64 / Test Installation of Common Wheels \| linux-x86_64	1m 51s
pytest integration \| windows x86_64	9m 16s
test wheel installation \| windows x86_64 / Test Installation of Common Wheels \| windows-x86_64	4m 47s
pytest integration \| macos aarch64	4m 37s
test wheel installation \| macos aarch64 / Test Installation of Common Wheels \| macos-aarch64	2m 16s
	1h 24m 21s

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