feat: add optimistic governor to sepolia

[Reinis-FRP]

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Add a feature

Feature Request

Add support of UMA oSnap modules on Sepolia testnet.

Implementation

Add support by deploying oSnap module mastercopy on Sepolia testnet.

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Fix a bug

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Implementation

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This PR:

• Adds details of the module to the README (items are sorted alphabetically)
• Adds addresses of the canonical deployments of the mastercopy for your module to deployments.json, along with addresses and ABI details to constants.ts. Ideally these should be deterministic deployments that can be easily replicated on other supported networks.
• Includes an audit from a reputable auditor.

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