chore(deps): update rust crate assert_cmd to v2.2.1 #687

Job	Run time
GNU test suite	31s
cargo fmt --all -- --check	7s
cargo check (ubuntu-latest)	15s
cargo check (macOS-latest)	12s
cargo clippy -- -D warnings (ubuntu-latest)	15s
Code Coverage (ubuntu-latest, unix)	2m 17s
cargo clippy -- -D warnings (windows-latest)	35s
cargo test (windows-latest)	6m 4s
cargo test (macOS-latest)	1m 28s
Code Coverage (macos-latest, macos)	2m 6s
cargo test (ubuntu-latest)	47s
Code Coverage (windows-latest, windows)	8m 51s
cargo clippy -- -D warnings (macOS-latest)	20s
cargo check (windows-latest)	43s
	24m 31s

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