Update dependency supertest to v6.2.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
supertest	6.2.3 -> 6.2.4

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Release Notes

visionmedia/supertest

### [`v6.2.4`](https://togithub.com/visionmedia/supertest/releases/tag/v6.2.4) [Compare Source](https://togithub.com/visionmedia/supertest/compare/v6.2.3...v6.2.4) - chore: bump deps [`f411b02`](https://togithub.com/visionmedia/supertest/commit/f411b02) - chore: bump deps [`5e54761`](https://togithub.com/visionmedia/supertest/commit/5e54761)

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