feat: adopt EDR multichain

[Wodann]

This PR is a draft, containing changes to upgrade Hardhat to EDR's new multichain feature, once it has been released.

To Do

• Release EDR with multichain feature
• Bump EDR version in Hardhat

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Name	Status	Preview	Comments	Updated (UTC)
hardhat	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 22, 2024 6:21am

[changeset-bot]

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Latest commit: ce03078

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[kanej]

This PR was put together to help demonstrate EDR's api around multi-chain. It has served that purpose.