mod: bump neutrino to testing version #14644

Job	Run time
check commits	3m 1s
Sqlc check	1m 0s
lint code	48s
RPC and mobile compilation check	3m 49s
cross compilation	11m 23s
run macOS itest	42m 38s
check pinned dependencies (google.golang.org/grpc v1.59.0)	3s
check release notes updated	3s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	5s
sample configuration check	1m 25s
run ubuntu itests (btcd, backend=btcd cover=1)	25m 19s
run unit tests (btcd unit-cover)	16m 55s
run windows itest	39m 7s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	32m 17s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	31m 17s
run unit tests (unit tags="kvdb_etcd")	18m 47s
run unit tests (unit tags="kvdb_postgres")	17m 47s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	32m 14s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	42m 2s
run unit tests (unit tags="kvdb_sqlite")	16m 26s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	57m 31s
run unit tests (btcd unit-race)	34m 35s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	33m 43s
run unit tests (unit-module)	1m 53s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	57m 27s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	33m 46s
run ubuntu itests (neutrino, backend=neutrino cover=1)	31m 44s
finish	6s
	9h 47m 11s

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