Prepare for v4 work

[gretzke]

• Upgrade hardhat to cancun
• Use a more recent mainnet fork
• Stop deploying Permit2, and instead reference deployed version
• Remove NFTs to make space for a v2-v3-v4 UR version

[socket-security[bot]]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/@nomicfoundation/hardhat-foundry@1.1.2	filesystem, shell	0	25.6 kB	schaable
npm/hardhat@2.22.5	environment, filesystem, network, shell Transitive: eval, unsafe	+154	171 MB	kanej

🚮 Removed packages: npm/@nomicfoundation/ethereumjs-rlp@4.0.0, npm/abstract-level@1.0.3, npm/catering@2.1.1, npm/hardhat@2.12.2, npm/module-error@1.0.2, npm/queue-microtask@1.2.3

View full report↗︎

[ewilz]

Might be nice to re-review after the other 2 PRs are merged here..