Update hashbrown requirement from 0.14.5 to 0.15.2 #35428

Job	Run time
Check cargo fmt	46s
Check License Header	2m 16s
cargo check	33s
build with wasm-pack	36s
cargo test (macos)	18s
cargo test (macos-aarch64)	18s
Verify MSRV (Min Supported Rust Version)	4m 26s
Verify Vendored Code	36s
cargo test (win64)	1m 19s
cargo test doc (amd64)	0s
cargo test datafusion-cli (amd64)	0s
clippy	0s
check Cargo.toml formatting	0s
check configs.md and ***_functions.md is up-to-date	0s
cargo test hash collisions (amd64)	0s
cargo doc	0s
cargo test (amd64)	0s
cargo examples (amd64)	0s
Run sqllogictest with Postgres runner	0s
cargo test pyarrow (amd64)	0s
verify benchmark results (amd64)	0s
	11m 8s

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