chore: deploy sepolia-dev + rocketh bump

[TateB]

sepolia-dev deployment (v1 from ensdomains/ens-contracts#537), with rocketh breaking changes.

rocketh updates:

• artifacts import replaced with individual generated artifact imports (e.g. Artifact_X from generated/artifacts/X.js)
  • improves typescript perf in individual deploy files significantly
• rocketh.ts split into rocketh/config.ts, rocketh/deploy.ts, rocketh/environment.ts.
  • following updated rocketh recommendations
• updated setup.ts, patchArtifactsV1.ts, e2e tests for new rocketh API

deploy script updates:

• reverse registry deploy scripts moved to deploy/reverse/ subfolder
  • disabled v2-native ReverseRegistry and ETHReverseResolver for now
  • set ENSV1Resolver on reverse
• added deploy/testnet/00_FastETHRegistrar.ts
  • this existed in prior dev deployments, just split out now.
• DNSTLDResolver deploy
  • now checks RootRegistry.getStatus() before registering each suffix, skipping already-registered ones
  • temp BatchRegistrar usage for reserving TLDs
• added more state checks in deploys to allow scripts to be replayed without duplicate transactions

misc updates:

• added plugins/clear-remappings hardhat plugin (from bump in hh version)
  • hardhat doesn't like ens-contracts' remappings file and will throw errors if we don't clear it.

[adraffy]

Possibly, this PR can also do the deploy directory restructuring that makoto started?

Can this include the Sepolia preMigration() function too?