Fix fixture types after adding entrypoints

[GregBrimble]

What this PR solves / how to test

Looks like somehow we ended up with failing types after #5215. This adds the one line we're missing in a fixture test.

Author has addressed the following

• Tests
  • TODO (before merge)
  • Included
  • Not necessary because: it is a test!
• Changeset (Changeset guidelines)
  • TODO (before merge)
  • Included
  • Not necessary because: just a change to a fixture
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s): https://github.com/cloudflare/cloudflare-docs/pull/...
  • Not necessary because: just a change to a fixture

[changeset-bot]

🦋 Changeset detected

Latest commit: ebddea5

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

This PR includes changesets to release 4 packages

Name	Type
miniflare	Patch
@cloudflare/pages-shared	Patch
@cloudflare/vitest-pool-workers	Patch
wrangler	Patch

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[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/8551445733/npm-package-wrangler-5499

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npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/5499/npm-package-wrangler-5499

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Additional artifacts:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8551445733/npm-package-create-cloudflare-5499 --no-auto-update

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8551445733/npm-package-cloudflare-kv-asset-handler-5499

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8551445733/npm-package-miniflare-5499

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8551445733/npm-package-cloudflare-pages-shared-5499

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/8551445733/npm-package-cloudflare-vitest-pool-workers-5499

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---

wrangler@3.45.0 includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20240329.1
workerd	1.20240403.0	1.20240403.0
workerd --version	1.20240403.0	2024-04-03

Please ensure constraints are pinned, and miniflare/workerd minor versions match.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.18%. Comparing base (cd03d1d) to head (ebddea5).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5499      +/-   ##
==========================================
+ Coverage   72.11%   72.18%   +0.07%     
==========================================
  Files         331      331              
  Lines       17175    17175              
  Branches     4386     4386              
==========================================
+ Hits        12385    12398      +13     
+ Misses       4790     4777      -13     

see 7 files with indirect coverage changes