ci: use `-Cinstrument-coverage` instead of `-Zprofile` #1308

Job	Run time
cargo fmt --all -- --check	6s
cargo clippy -- -D warnings	22s
Code coverage (ubuntu-latest, nightly, --all-features)	48s
cargo check (ubuntu-latest)	30s
cargo check (macOS-latest)	16s
cargo test (ubuntu-latest)	38s
cargo check (windows-latest)	2m 40s
cargo test (macOS-latest)	36s
cargo test (windows-latest)	2m 32s
	8m 28s

Provide feedback