* replace sha256 with pedersen_hash
* fix: prevent an OOB
* workaround timeout in unit test
* update go-ipa and reduce the timeout
* fix for unit tests: do not call NewAccessWitness in NewEVMTxContext (#49)
* potential fix: do not call NewAccessWitness in NewEVMTxContext
* more fixes: check for the existence of Accesses
* fix absence of witness in copy
* fix another witness issue
* workaround: ensure the prefetcher is off in verkle mode
* fix the remaining issues in tests
* review feedback
* fix witness allocation in stateless test