fix: type sponsored feeToken test

[jxom]

Types the sponsored feeToken regression assertion through a Tempo-shaped local request view, unblocking TypeScript checks after the sponsor fee-token preservation fix landed.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 161ece3

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.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
viem	Building	Preview, Comment	Jul 6, 2026 5:30am