Checks for duplicate artifacts when instantiating the `hardhat` object. This armors against an issue in the regentool where the regentool was passing in the deployments directory rather than the network directory. This led to artifacts being non-deterministically chosen based on however `fs.WalkDir` iterated over the deployments directory.

Fixes ENG-3054

Merge pull request #4725 from ethereum-optimism/zhwrd/01-09-INF-22_integrate_op-signer_client_with_op-batcher

INF-22 integrate op-signer client with op-batcher

Add two step monitor package to dockerfile and releases

Add scaffolding for new 'two-step-monitor' package

op-proposer: Cleanup

This removes the driver / service design from the proposer & puts it all
in the L2 Output Submitter. This significantly reduces some of the
boilerplate. This also removes some extra config options.

l2geth: default gascap

Follows upstream by setting a default gascap for rpc

fix: Allow unknown options in base service v2

INF-22 implements op-signer client

ctp: update AttestationStation to 1.1.0

op-chain-ops: Preserve predeploy nonces

Users are unable to use the OptimismMintableERC20Factory contract due to the nonce being reset to zero. This PR updates the predeploy storage wipe function to preserve nonces during the migration. This is fixable on Goerli by incrementing the nonce manually on the factory contract.

contracts-bedrock: Bindings script to prevent Circleci breakage

op-node: fix pprof missing handler, use op-service pprof util instead

Add support for stopping / starting sequencer from admin API

docs: Add Bedrock and Periphery Audit

op-chain-ops: add getter for cdm

fix(ctb): ERC20 bridge events