build(deps-dev): bump @cloudflare/vitest-pool-workers (#3456)

Bumps [@cloudflare/vitest-pool-workers](https://github.com/cloudflare/workers-sdk/tree/HEAD/packages/vitest-pool-workers) from 0.8.12 to 0.8.23.
- [Release notes](https://github.com/cloudflare/workers-sdk/releases)
- [Changelog](https://github.com/cloudflare/workers-sdk/blob/main/packages/vitest-pool-workers/CHANGELOG.md)
- [Commits](https://github.com/cloudflare/workers-sdk/commits/@cloudflare/vitest-pool-workers@0.8.23/packages/vitest-pool-workers)

---
updated-dependencies:
- dependency-name: "@cloudflare/vitest-pool-workers"
  dependency-version: 0.8.23
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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packages/pg/package.json

@@ -39,7 +39,7 @@
     "pgpass": "1.0.5"
   },
   "devDependencies": {
-    "@cloudflare/vitest-pool-workers": "0.8.12",
+    "@cloudflare/vitest-pool-workers": "0.8.23",
     "@cloudflare/workers-types": "^4.20230404.0",
     "async": "2.6.4",
     "bluebird": "3.7.2",