Bump miniflare from 3.20241205.0 to 3.20241218.0

Bumps [miniflare](https://github.com/cloudflare/workers-sdk/tree/HEAD/packages/miniflare) from 3.20241205.0 to 3.20241218.0.
- [Release notes](https://github.com/cloudflare/workers-sdk/releases)
- [Changelog](https://github.com/cloudflare/workers-sdk/blob/main/packages/miniflare/CHANGELOG.md)
- [Commits](https://github.com/cloudflare/workers-sdk/commits/[email protected]/packages/miniflare)

---
updated-dependencies:
- dependency-name: miniflare
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -32,7 +32,7 @@
         "eslint": "9.17.0",
         "jest": "29.7.0",
         "jest-environment-miniflare": "2.14.4",
-        "miniflare": "3.20241205.0",
+        "miniflare": "3.20241218.0",
         "npm-check-updates": "17.1.11",
         "prettier": "3.4.2",
         "ts-jest": "29.2.5",