release: 4.0.4 [skip ci]

### [4.0.4](v4.0.3...v4.0.4) (2024-03-02)

#### 🪄 Fixes

* **src:** allow relative url strings passed via url shorthand for App Router ([01b86b6](01b86b6)) <sup>closes [#1000](https://github.com/Xunnamius/next-test-api-route-handler/issues/1000)</sup>
* **src:** prevent recursive redirection with undici/whatwg fetch ([22bb716](22bb716)) <sup>closes [#993](https://github.com/Xunnamius/next-test-api-route-handler/issues/993)</sup>
* **src:** replace `AppRouteUserlandModule` with looser type ([502e666](502e666)) <sup>closes [#1006](#1006), [#1005](https://github.com/Xunnamius/next-test-api-route-handler/issues/1005)</sup>

Author: Xunnamius