Update hashbrown requirement from 0.14.5 to 0.15.2 #35940

Job	Run time
Check License Header	2m 17s
cargo check	34s
build with wasm-pack	38s
cargo test (macos)	17s
cargo test (macos-aarch64)	18s
Verify Vendored Code	37s
cargo test (win64)	1m 26s
Check cargo fmt	41s
Verify MSRV (Min Supported Rust Version)	4m 43s
cargo examples (amd64)	0s
cargo test (amd64)	0s
cargo doc	0s
cargo test datafusion-cli (amd64)	0s
cargo test doc (amd64)	0s
check Cargo.toml formatting	0s
clippy	0s
cargo test hash collisions (amd64)	0s
Run sqllogictest with Postgres runner	0s
cargo test pyarrow (amd64)	0s
verify benchmark results (amd64)	0s
check configs.md and ***_functions.md is up-to-date	0s
	11m 31s

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