chore(deps): update dependency supertest to v4
chore(deps): update dependency supertest to v4

chore(deps): update dependency supertest to v4

This PR contains the following updates:

| Package | Type | Update | Change | References |
|---|---|---|---|---|
| supertest | devDependencies | major | [`^3.3.0` -> `^4.0.0`](https://diff.intrinsic.com/supertest/3.4.2/4.0.0) | [source](https://togithub.com/visionmedia/supertest) |

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### Release Notes

<details>
<summary>visionmedia/supertest</summary>

### [`v4.0.0`](https://togithub.com/visionmedia/supertest/releases/v4.0.0)

[Compare Source](https://togithub.com/visionmedia/supertest/compare/v3.4.2...v4.0.0)

-   Merge pull request [#&#8203;539](https://togithub.com/visionmedia/supertest/issues/539) from ozzywalsh/fix-agent-defaults  [`abf6bc3`](https://togithub.com/visionmedia/supertest/commit/abf6bc3)
-   Merge pull request [#&#8203;554](https://togithub.com/visionmedia/supertest/issues/554) from visionmedia/use-trust-localhost  [`5914936`](https://togithub.com/visionmedia/supertest/commit/5914936)

</details>

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