ci: use `-Cinstrument-coverage` instead of `-Zprofile` #1319

Job	Run time
cargo clippy -- -D warnings	21s
cargo check (ubuntu-latest)	20s
cargo fmt --all -- --check	4s
cargo check (macOS-latest)	13s
Code coverage (ubuntu-latest, nightly, --all-features)	46s
cargo check (windows-latest)	2m 4s
cargo test (ubuntu-latest)	32s
cargo test (macOS-latest)	50s
cargo test (windows-latest)	2m 9s
	7m 19s

Provide feedback