refactor: Add a `bin_unpack_bin_max` for max-length arrays. #3708

Job	Run time
docker-bootstrap-node	24s
docker-toxcore-js	1m 47s
docker-fuzzer	8s
docker-clusterfuzz	1m 32s
docker-win32	17s
docker-win64	15s
docker-esp32	39s
docker-bootstrap-node-websocket	0s
	5m 2s

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