Rust

Convert Average to UDAF #10942 #28329

Job	Run time
cargo check	3m 37s
Check cargo fmt	27s
build with wasm-pack	2m 8s
cargo test (macos)	9m 0s
cargo test (macos-aarch64)	8m 59s
Verify MSRV (Min Supported Rust Version)	6m 13s
Verify Vendored Code	57s
cargo test (win64)	35m 34s
cargo test (amd64)	9m 24s
cargo test doc (amd64)	12m 19s
cargo test datafusion-cli (amd64)	3m 42s
cargo doc	3m 46s
cargo examples (amd64)	12m 15s
cargo test pyarrow (amd64)	2m 32s
Run sqllogictest with Postgres runner	3m 14s
verify benchmark results (amd64)	10m 13s
clippy	5m 11s
check configs.md is up-to-date	2m 17s
check Cargo.toml formatting	2m 40s
cargo test hash collisions (amd64)	8m 48s
	2h 23m 16s

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