To fix#6798
Follows the same pattern as other temporary fixes for BSC.
Tested locally and the transaction in question shows the same behaviour
as nethermind, coming to the same gas used and reverted behaviour by the
end. Tracing the block also works as expected now.
Tracing a transaction after the fork at 21735000 loads up the new
contract as expected as well.
Works around a flaw in the upgrade logic of the system contracts. Since
they are updated directly, without first being self-destructed and then
re-created, the usual incarnation logic does not get activated, and all
historical records of the code of these contracts are retrieved as the
most recent version. This problem will not exist in erigon3, but until
then, a workaround will be used to access code of such contracts through
a special structure, `SystemContractCodeLookup`
Fixes https://github.com/ledgerwatch/erigon/issues/5865
Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>
