Move cargo config aliases to justfile. (#740) #2384

Job	Run time
MSRV Build [Rust 1.65]	2m 5s
Test Suite [no features]	1m 28s
Build Examples	54s
Build [debug feature]	32s
Test Suite [default features]	1m 34s
Test Suite [default except content_size]	1m 29s
Test Suite [default + serde]	1m 38s
Test Suite [std + flexbox]	1m 30s
Test Suite [std + grid]	1m 28s
Test Suite [std (no algorithms)]	1m 32s
Build Benchmarks	6s
Build Benchmarks (w/ yoga)	3s
Clippy	1m 17s
Documentation	50s
Test Fixture Formatting	2s
Rustfmt	11s
Markdown Lint	4s
Test Suite [alloc + all algorithms]	1m 38s
Test Suite [std + block)]	1m 30s
Test Suite [alloc + no algorithms]	1m 27s
	21m 18s

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