* Add Holocene action tests

* fix invalid batch tests

* Handle rpc.Errors directly instead of relying on eth.InputErrors

The fault proof program's L2 Engine API doesn't return eth.InputErrors,
like the sources engine client, but directly returns rpc.Errors.
So instead of relying on this translation, derivers need to deal
directly with rpc.Errors.

* In TryBackupUnsafeReorg, only reset on InvalidForkchoiceState error code

* Add logs

* include genesis FPP tests

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Co-authored-by: Sebastian Stammler <seb@oplabs.co>