Fuzz

Bump actions/upload-artifact from 3 to 4 #4

Job	Run time
fuzz (bitcoin_deserialize_address)	4m 48s
fuzz (bitcoin_deserialize_amount)	4m 47s
fuzz (bitcoin_deserialize_block)	4m 47s
fuzz (bitcoin_deserialize_prefilled_transaction)	3m 57s
fuzz (bitcoin_deserialize_psbt)	4m 39s
fuzz (bitcoin_deserialize_script)	4m 46s
fuzz (bitcoin_deserialize_transaction)	4m 5s
fuzz (bitcoin_deserialize_witness)	6m 10s
fuzz (bitcoin_deser_net_msg)	4m 50s
fuzz (bitcoin_outpoint_string)	4m 54s
fuzz (bitcoin_script_bytes_to_asm_fmt)	5m 42s
fuzz (hashes_cbor)	4m 50s
fuzz (hashes_json)	4m 47s
fuzz (hashes_ripemd160)	5m 16s
fuzz (hashes_sha1)	4m 57s
fuzz (hashes_sha256)	4m 57s
fuzz (hashes_sha512_256)	5m 10s
fuzz (hashes_sha512)	4m 47s
verify-execution	0s
	1h 28m 9s

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