fix(ctb): Address DoS vulnerability in `OptimismPortal`'s `proveWithdrawalTransaction`

feat(ctb): allow multiple output deletions

fix(sdk): final flake hotfix

Updates the L2OutputOracle to allow deletion of multiple outputs at the
same time. This is a safety mechanism that prevents a compromised
sequencer from forcing the multisig into deleting potentially thousands
of bad outputs one by one.

Final hotfix for flakes, if this doesn't work then I'll dive into
figuring out the root cause. Now we wait 30 seconds and only continue if
we haven't seen a reorg for the full 30 seconds.

maint(ctb): minor cleanups in L2OO

feat(ctb): unify fresh and migration deployments

ctb: Remove old beta-1 network

Several small cleanups to the L2OutputOracle.

fix(sdk): test flakes #2

Additional tweaks to prevent test flakes in the SDK.

Removes the concept of a "Fresh" deployment and deploys some legacy
contracts where necessary so that all new deployments will mirror the
mainnet system. Although this enshrines some legacy code, it means that
we won't have multiple conflicting deployments in the future.

fix(sdk): test flakes

Fixes test flakes in the SDK

feat(ctb): MSD exit point 1

Most ephemeral networks created via the regntool don't need verification. This PR allows verification to be enabled on a case-by-case basis by setting an environment variable.

op-node: More test cleanup

op-node: Use assert rather than require

Introduces the first exit point for the MigrationSystemDictator.

CI: Enable Hive to work with external contributors

Bedrock: release v0.10.1 go modules

fix(ctb): allow same L2OO owner and proposer