Rust

[branch-48] Cherry pick `to_timestamp` fix for float values #104

Job	Run time
build and run with wasm-pack	5m 29s
linux build test	5m 20s
Check License Header	2m 31s
Verify Vendored Code	1m 2s
cargo test (macos-aarch64)	5m 30s
Check cargo fmt	53s
Verify MSRV (Min Supported Rust Version)	5m 19s
verify benchmark results (amd64)	1s
cargo check datafusion features	1s
cargo examples (amd64)	1s
cargo test (amd64)	1s
cargo doc	1s
cargo test datafusion-cli (amd64)	1s
cargo check datafusion-substrait features	1s
cargo check datafusion-proto features	1s
cargo check datafusion-common features	1s
cargo check datafusion-functions features	1s
cargo test doc (amd64)	1s
Run sqllogictest with Postgres runner	1s
check configs.md and ***_functions.md is up-to-date	1s
cargo test pyarrow (amd64)	1s
clippy	1s
Run sqllogictest in Substrait round-trip mode	1s
check Cargo.toml formatting	1s
	26m 21s

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