🐛 BUG: Yarn PnP Compatibility Error with @cloudflare/vitest-pool-workers

### Which Cloudflare product(s) does this pertain to?

Workers Vitest Integration

### What version(s) of the tool(s) are you using?

3.84.1 [Wrangler], 2.1.4 [Vitest], 0.5.24 [@cloudflare/vitest-pool-workers], 4.5.1 [yarn], 5.6.3 [typescript]

### What version of Node are you using?

20.11.1

### What operating system and version are you using?

macOS Sequoia 15.1 (24B83)

### Describe the Bug

### Bug Description:
When using **Yarn Plug'n'Play** (PnP) with `@cloudflare/vitest-pool-workers`, the test command fails with module resolution errors that prevent loading `@cloudflare/vitest-pool-workers`. Setting up testing results in an "Error: Failed to load URL" message due to incompatible module resolution handling.

The error is displayed when running `yarn vitest run`:
```plaintext
Error: Failed to load url /path/to/project/@cloudflare/vitest-pool-workers (resolved id: /path/to/project/@cloudflare/vitest-pool-workers). Does the file exist?
```

### Expected Behavior:
Expected `@cloudflare/vitest-pool-workers` to work seamlessly under Yarn's PnP configuration without needing adjustments to Yarn’s `nodeLinker`.

### Temporary Workaround:
Switching the `nodeLinker` setting in `.yarnrc.yml` to either `'pnpm'` or `'node-modules'` resolves the issue, but this circumvents the intended PnP functionality.

### Please provide a link to a minimal reproduction

https://github.com/ZL-Asica/KumoAuth

### Please provide any relevant error logs

```bash
❯ yarn vitest run

RUN v2.1.4 /Users/xxx

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Unhandled Errors ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Vitest caught 1 unhandled error during the test run.
This might cause false positive tests. Resolve unhandled errors to make sure your tests are not affected.

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Unhandled Error ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Error: Failed to load url /Users/xxx/@cloudflare/vitest-pool-workers (resolved id: /Users/xxx/@cloudflare/vitest-pool-workers). Does the file exist?
❯ loadAndTransform .yarn/__virtual__/vite-virtual-831acd9201/5/.yarn/berry/cache/vite-npm-5.4.10-30d2e3a4e2-10c0.zip/node_modules/vite/dist/node/chunks/dep-BWSbWtLw.js:51920:17

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Serialized Error: { code: 'ERR_LOAD_URL' }
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯

Test Files no tests
Tests no tests
Errors 1 error
Start at 12:48:48
Duration 25ms (transform 0ms, setup 0ms, collect 0ms, tests 0ms, environment 0ms, prepare 0ms)
```

Reproduce the failure in the linked KumoAuth minimal reproduction with Yarn Plug'n'Play by running `yarn vitest run`. Start with the `@cloudflare/vitest-pool-workers` setup and `.yarnrc.yml`, then trace the reported module-resolution error. Done means the test command loads the package successfully while retaining the PnP node linker.

Written by the indexing model from the issue text.