Fuzz

refactor: fix warnings in dash spv #750

Job	Run time
fuzz (dash_script_bytes_to_asm_fmt)	1m 52s
fuzz (dash_deserialize_block)	1m 43s
fuzz (dash_deserialize_witness)	2m 44s
fuzz (hashes_cbor)	3m 3s
fuzz (dash_deser_net_msg)	2m 0s
fuzz (dash_outpoint_string)	1m 53s
fuzz (dash_deserialize_amount)	3m 50s
fuzz (dash_deserialize_script)	1m 59s
fuzz (dash_deserialize_address)	2m 46s
fuzz (hashes_sha512)	2m 42s
fuzz (hashes_sha256)	2m 47s
fuzz (hashes_sha1)	1m 51s
fuzz (hashes_ripemd160)	2m 49s
fuzz (hashes_sha512_256)	2m 48s
fuzz (hashes_json)	3m 1s
verify-execution	0s
	37m 48s

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