feat: add energy web chains (ewc & volta)

[nichonien]

Description

Add Energy Web chains - EWC (production chain), Volta (test chain)

Additional Information

• [x] I read the contributing docs (if this is your first contribution)

Your ENS/address:

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: ade15b25e4ac88451a4f8f1cb3c32515ee3d46e6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

| Name | Type | | ----------------- | ----- | | @wagmi/chains | Major | | @wagmi/connectors | Major |

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[jxom]

Also need changeset: pnpm changeset