go.mod: bump btclog dep #16674

Job	Run time
lint code	7m 57s
check commits	1m 15s
RPC and mobile compilation check	1m 41s
Sqlc check	35s
cross compilation	32m 33s
run macOS itest	49m 31s
sample configuration check	36s
check pinned dependencies (google.golang.org/grpc v1.59.0)	4s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	4s
run ubuntu itests (btcd, backend=btcd cover=1)	29m 50s
run windows itest	5m 9s
run unit tests (btcd unit-cover)	5m 17s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	38m 7s
run unit tests (unit tags="kvdb_etcd")	18m 5s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	37m 59s
run unit tests (unit tags="kvdb_postgres")	17m 5s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	38m 48s
run unit tests (unit tags="kvdb_sqlite")	16m 0s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	54m 9s
run unit tests (btcd unit-race)	35m 22s
check release notes updated	0s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 10m 57s
run unit tests (unit-module)	1m 7s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	41m 52s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	1h 11m 56s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	40m 54s
run ubuntu itests (neutrino, backend=neutrino cover=1)	36m 34s
finish	6s
	10h 53m 33s

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