Support specific `GroupsAccumulator` for `median` #36527

Job	Run time
Check cargo fmt	42s
Check License Header	2m 30s
linux build test	3m 54s
build with wasm-pack	3m 17s
cargo test (macos-aarch64)	6m 25s
Verify MSRV (Min Supported Rust Version)	9m 3s
Verify Vendored Code	52s
cargo check functions	1m 38s
cargo check no default features	7m 59s
cargo test (amd64)	8m 16s
cargo check datafusion	4m 44s
check Cargo.toml formatting	3m 27s
clippy	2m 52s
check configs.md and ***_functions.md is up-to-date	4m 11s
cargo doc	4m 26s
cargo test datafusion-cli (amd64)	5m 9s
cargo test doc (amd64)	18m 13s
Run sqllogictest with Postgres runner	4m 56s
cargo examples (amd64)	14m 53s
cargo test pyarrow (amd64)	3m 34s
verify benchmark results (amd64)	8m 24s
	1h 59m 25s

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