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[bot]]

⚠️ No Changeset found

Latest commit: ce0307809f49ba28176164f7d046ad93fb5efb1b

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[kanej]

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