Cargo.toml: Simplify profiles #628

Job	Run time
cargo check (windows-latest)	1m 11s
cargo fmt --all -- --check	8s
cargo check (ubuntu-latest)	16s
cargo check (macOS-latest)	13s
cargo test (ubuntu-latest)	47s
GNU test suite	2m 16s
cargo test (macOS-latest)	2m 26s
cargo clippy -- -D warnings (macOS-latest)	12s
cargo test (windows-latest)	5m 2s
cargo clippy -- -D warnings (windows-latest)	1m 0s
Code Coverage (macos-latest, macos)	3m 29s
cargo clippy -- -D warnings (ubuntu-latest)	13s
Code Coverage (windows-latest, windows)	10m 2s
Code Coverage (ubuntu-latest, unix)	1m 55s
	29m 10s

Provide feedback