fix: BitPackedArray ptype changed by compute funcs #5922

Job	Run time
bench test	6m 33s
Rust build (all-features)	4m 1s
Check generated proto/fbs files are up to date	49s
Rust build (default features)	4m 27s
License Check and Audit Check	2m 10s
Rust build (with tokio dispatcher)	3m 10s
miri	6m 31s
Rust build (with compio dispatcher)	4m 28s
Rust build (with tokio+compio dispatcher)	2m 56s
Rust build (wasm32 with default features)	3m 0s
Python (test)	3m 16s
Rust (docs)	1m 21s
Python (lint)	3m 41s
Rust (tests)	6m 32s
	52m 55s

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