gnosis: make Aura object ready for parallel blocks execution

[AskAlexSharov]

Now i see there is internal state variables - it make parallel exec invalid and race

fatal error: concurrent map writes

goroutine 135 [running]:
github.com/erigontech/erigon/consensus/aura.(*RollingFinality).addSigners(...)
	/home/ubuntu/erigon/consensus/aura/rolling_finality.go:118
github.com/erigontech/erigon/consensus/aura.(*RollingFinality).buildAncestrySubChain(0xc0fb2229a0, 0xc0029b9258, {0x17, 0x9e, 0xc4, 0x37, 0xa2, 0x53, 0xd2, 0xe4, ...}, ...)
	/home/ubuntu/erigon/consensus/aura/rolling_finality.go:157 +0x5f8
github.com/erigontech/erigon/consensus/aura.buildFinality(0xc168966040, {0x7159a8120fd8, 0xc001606040}, 0x2f48460?, {0x207f068?, 0xc08ea5c140?}, 0xc0030f2588, 0x6397ff?)
	/home/ubuntu/erigon/consensus/aura/aura.go:758 +0x17d
github.com/erigontech/erigon/consensus/aura.(*AuRa).Finalize(0xc00059a900, 0x8?, 0xc0030f2588, 0x43b618?, {0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}, ...)
	/home/ubuntu/erigon/consensus/aura/aura.go:734 +0x425
github.com/erigontech/erigon/consensus/merge.(*Merge).Finalize(0xc00059c670, 0xc0015db8c0, 0xc0030f2588, 0xc0019818c0, {0x0, 0x0, 0x0}, {0x0, 0x0, 0x0}, ...)
	/home/ubuntu/erigon/consensus/merge/merge.go:158 +0x242
github.com/erigontech/erigon/cmd/state/exec3.(*HistoricalTraceWorker).RunTxTask(0xc00197dd10, 0xc001efb888)
	/home/ubuntu/erigon/cmd/state/exec3/historical_trace_worker.go:176 +0x717
github.com/erigontech/erigon/cmd/state/exec3.(*HistoricalTraceWorker).Run(0xc00197dd10)
	/home/ubuntu/erigon/cmd/state/exec3/historical_trace_worker.go:118 +0x9c
github.com/erigontech/erigon/cmd/state/exec3.NewHistoricalTraceWorkers.func2()
	/home/ubuntu/erigon/cmd/state/exec3/historical_trace_worker.go:311 +0x77
golang.org/x/sync/errgroup.(*Group).Go.func1()
	/home/ubuntu/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:78 +0x56
created by golang.org/x/sync/errgroup.(*Group).Go in goroutine 1
	/home/ubuntu/go/pkg/mod/golang.org/x/[email protected]/errgroup/errgroup.go:75 +0x96

goroutine 1 [runnable, locked to thread]:
sync.runtime_SemacquireRWMutexR(0x0?, 0xd8?, 0xb71193?)
	/usr/local/go/src/runtime/sema.go:82 +0x25
sync.(*RWMutex).RLock(...)
	/usr/local/go/src/sync/rwmutex.go:70
github.com/erigontech/erigon/rlp.cachedTypeInfo({0x2091ff0, 0x1af7520}, {0x0, 0x0, 0x0, 0x0, 0x0})
	/home/ubuntu/erigon/rlp/typecache.go:82 +0x86
github.com/erigontech/erigon/rlp.cachedDecoder(...)
	/home/ubuntu/erigon/rlp/typecache.go:72
github.com/erigontech/erigon/rlp.(*Stream).Decode(0xc16770c880, {0x19a8140?, 0xc16a882b40?})
	/home/ubuntu/erigon/rlp/decode.go:901 +0x19f
github.com/erigontech/erigon/rlp.Decode({0x2064320, 0xc15bd446f0}, {0x19a8140, 0xc16a882b40})
	/home/ubuntu/erigon/rlp/decode.go:118 +0x10a
github.com/erigontech/erigon/turbo/snapshotsync/freezeblocks.(*BlockReader).bodyForStorageFromSnapshot(0x1141537a9f010?, 0xc0fab33e20?, 0xc0fbc85620, {0xc002799b80, 0x247, 0x247})
	/home/ubuntu/erigon/turbo/snapshotsync/freezeblocks/block_reader.go:972 +0x265
github.com/erigontech/erigon/turbo/snapshotsync/freezeblocks.(*BlockReader).bodyFromSnapshot(0x4181a7286513ac10?, 0x20818c0?, 0xc0009ae9c0?, {0xc002799b80?, 0xc0027a6008?, 0x0?})
	/home/ubuntu/erigon/turbo/snapshotsync/freezeblocks/block_reader.go:928 +0x1c
github.com/erigontech/erigon/turbo/snapshotsync/freezeblocks.(*BlockReader).blockWithSenders(0xc15bb022f0, {0x2075790, 0x2f48460}, {0x71599fe6f6f8, 0xc168966480}, {0x10, 0xac, 0x13, 0x65, 0x28, ...}, ...)
	/home/ubuntu/erigon/turbo/snapshotsync/freezeblocks/block_reader.go:811 +0xb1d
github.com/erigontech/erigon/turbo/snapshotsync/freezeblocks.(*BlockReader).BlockWithSenders(...)
	/home/ubuntu/erigon/turbo/snapshotsync/freezeblocks/block_reader.go:713
github.com/erigontech/erigon/turbo/snapshotsync/freezeblocks.(*BlockReader).BlockByNumber(0xc15bb022f0, {0x2075790, 0x2f48460}, {0x71599fe6f640?, 0xc168966480}, 0x200)
	/home/ubuntu/erigon/turbo/snapshotsync/freezeblocks/block_reader.go:1240 +0xf9
github.com/erigontech/erigon/cmd/state/exec3.blockWithSenders({0x20758f0, 0xc00086c500}, {0x0, 0x0}, {0x71599fe6f640, 0xc168966480}, {0x71599fe71980, 0xc15bb022f0}, 0x200)
	/home/ubuntu/erigon/cmd/state/exec3/historical_trace_worker.go:522 +0x15c
github.com/erigontech/erigon/cmd/state/exec3.CustomTraceMapReduce(0x0, 0xf4240, {0x1e655b0?, 0xc168966580?}, {0x20758f0, 0xc00086c500}, {0x208ed28, 0xc168966480}, 0xc000024300, {0x2080d28, ...})
	/home/ubuntu/erigon/cmd/state/exec3/historical_trace_worker.go:421 +0x7fe
github.com/erigontech/erigon/eth/stagedsync.customTraceBatch({0x20758f0, 0xc00086c500}, 0xc000024300, {0x71599fe715a0, 0xc168966480}, 0xc00114a0e0, 0x0, 0xf4240, {0x1bd0f83, 0xc}, ...)
	/home/ubuntu/erigon/eth/stagedsync/stage_custom_trace.go:174 +0x245
github.com/erigontech/erigon/eth/stagedsync.customTraceBatchProduce.func1({0x20941c8, 0xc168966480})
	/home/ubuntu/erigon/eth/stagedsync/stage_custom_trace.go:119 +0x285
github.com/erigontech/erigon-lib/kv/temporal.(*DB).Update(0x153fc11?, {0x20758f0?, 0xc00086c500?}, 0xc167b1df20)
	/home/ubuntu/erigon/erigon-lib/kv/temporal/kv_temporal.go:125 +0x96
github.com/erigontech/erigon/eth/stagedsync.customTraceBatchProduce({0x20758f0, 0xc00086c500}, 0xc000024300, {0x20817e0, 0xc103ca58f0}, 0x0, 0xf4240, {0x1bd0f83, 0xc}, {0x2080d28, ...})
	/home/ubuntu/erigon/eth/stagedsync/stage_custom_trace.go:111 +0x14c
github.com/erigontech/erigon/eth/stagedsync.SpawnCustomTrace({{0x0, 0x0}, {0x20817e0, 0xc103ca58f0}, {0x1, {0x2078040, 0xc16aeff698}, {0x2078040, 0xc16aeff6a0}, {}}, ...}, ...)
	/home/ubuntu/erigon/eth/stagedsync/stage_custom_trace.go:101 +0x28a
github.com/erigontech/erigon/cmd/integration/commands.stageCustomTrace({0x20817e0, 0xc103ca58f0}, {0x20758f0, 0xc00086c500}, {0x2080d28, 0xc0007d1020})
	/home/ubuntu/erigon/cmd/integration/commands/stages.go:1139 +0x958
github.com/erigontech/erigon/cmd/integration/commands.init.func24(0x2de1980, {0x1bc2cea?, 0x4?, 0x1bc2b8e?})
	/home/ubuntu/erigon/cmd/integration/commands/stages.go:247 +0x2d5
github.com/spf13/cobra.(*Command).execute(0x2de1980, {0xc000848a80, 0x8, 0x8})
	/home/ubuntu/go/pkg/mod/github.com/spf13/[email protected]/command.go:989 +0xab1
github.com/spf13/cobra.(*Command).ExecuteC(0x2ddeb80)
	/home/ubuntu/go/pkg/mod/github.com/spf13/[email protected]/command.go:1117 +0x3ff
github.com/spf13/cobra.(*Command).Execute(...)
	/home/ubuntu/go/pkg/mod/github.com/spf13/[email protected]/command.go:1041
github.com/spf13/cobra.(*Command).ExecuteContext(0x0?, {0x20758f0?, 0xc00086c500?})
	/home/ubuntu/go/pkg/mod/github.com/spf13/[email protected]/command.go:1034 +0x47
main.main()
	/home/ubuntu/erigon/cmd/integration/main.go:34 +0xe6