Rust

Drop assertor dependency #284

Job	Run time
Check cargo fmt	38s
cargo check	7m 10s
build with wasm-pack	2m 35s
cargo test (macos)	16m 19s
Verify MSRV (Min Supported Rust Version)	8m 27s
cargo test (macos-aarch64)	10m 53s
Verify Vendored Code	49s
cargo test (win64)	1h 4m 43s
cargo test datafusion-cli (amd64)	4m 0s
check Cargo.toml formatting	2m 43s
clippy	5m 43s
cargo test hash collisions (amd64)	17m 19s
cargo doc	3m 56s
cargo test (amd64)	10m 43s
cargo test doc (amd64)	16m 7s
cargo examples (amd64)	13m 35s
Run sqllogictest with Postgres runner	3m 33s
cargo test pyarrow (amd64)	2m 45s
verify benchmark results (amd64)	12m 23s
check configs.md and ***_functions.md is up-to-date	3m 5s
	3h 27m 26s

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