This fixes the following panic for Gnosis Chain on the validator switch
at block 9186425:
```
panic: method 'getValidators' not found
goroutine 90 [running]:
github.com/ledgerwatch/erigon/consensus/aura.(*ValidatorSafeContract).getListSyscall(0x14000ed9358, 0xd40004bf620)
github.com/ledgerwatch/erigon/consensus/aura/validators.go:634 +0x258
github.com/ledgerwatch/erigon/consensus/aura.(*ValidatorSafeContract).epochSet(0x16?, 0x20?, 0x8c2c79, {0xd4002d77180, 0x25f, 0x25f}, 0x11400fac7ee8?)
github.com/ledgerwatch/erigon/consensus/aura/validators.go:453 +0xdc
github.com/ledgerwatch/erigon/consensus/aura.(*ValidatorContract).epochSet(0x140006ae980?, 0x38?, 0x6f9d00000000c28e?, {0xd4002d77180?, 0x108acc108?, 0x40?}, 0x14000618000?)
```
* Test GnosisGenesisStateRoot
* Delete obsolete allocations
* SysCallContract shouldn't increase nonce of SystemAddress
* Max gas limit in SysCallContract
* Restore error swallowing for Bor
* remove ctx from state writer interface
* call me baby
* save
* save
* can process block 1
* can process block 1
* can process block 1
* can process block 1
* save
* save
* parse logs logic
* cleans
* cleans
* cleans
* handle chain flag in integration
* handle chain flag in integration
* handle chain flag in integration
* save
* save
* merge devel
* save
* noopWriter - one is enough
* chain spec parser
* chain spec parser
* embed
* embed
* embed
* embed
* embed
* embed
* embed
* clean
* clean
* correct alloc after reset state
* correct alloc after reset state
* correct alloc after reset state
* integration reset state now does re-apply genesis and chainConfig
* eips summary
* eips summary
* eips summary