ci: fix up the C3 prerelease job

[petebacondarwin]

Fixes # [insert GH or internal issue number(s)].

What this PR solves / how to test:

Associated docs issue(s)/PR(s):

• [insert associated docs issue(s)/PR(s)]

Author has included the following, where applicable:

• Tests
• Changeset (Changeset guidelines)

Reviewer is to perform the following, as applicable:

• Checked for inclusion of relevant tests
• Checked for inclusion of a relevant changeset
• Checked for creation of associated docs updates
• Manually pulled down the changes and spot-tested

[changeset-bot]

⚠️ No Changeset found

Latest commit: cc3d001

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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[JacobMGEvans]

YOLO

[github-actions]

A wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/5270955938/npm-package-wrangler-3462

You can reference the automatically updated head of this PR with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/3462/npm-package-wrangler-3462

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/5270955938/npm-package-wrangler-3462 dev path/to/script.js

Additional artifacts:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/5270955938/npm-package-cloudflare-pages-shared-3462

Note that these links will no longer work once the GitHub Actions artifact expires.