chore(deps-dev): bump @types/supertest from 2.0.13 to 2.0.15 (#277)

Bumps [@types/supertest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/supertest) from 2.0.13 to 2.0.15.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/supertest)

---
updated-dependencies:
- dependency-name: "@types/supertest"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

yarn.lock

@@ -6164,9 +6164,9 @@
     "@types/node" "*"
 
 "@types/supertest@^2.0.8":
-  version "2.0.13"
-  resolved "https://registry.yarnpkg.com/@types/supertest/-/supertest-2.0.13.tgz#797b3df9abb9a09c4c740c9c615d618c7921ad41"
-  integrity sha512-Vc/5/pRwSC055fU7Wu8erTj4gLpID9SdG2zRMuqaHLni3GTsrJ8gyB6MbFZZGLW6vQaGPhiUWRB6uWglv87MEg==
+  version "2.0.15"
+  resolved "https://registry.yarnpkg.com/@types/supertest/-/supertest-2.0.15.tgz#3d032865048c84c6a3bbbf1f949145b917d2ff65"
+  integrity sha512-jUCZZ/TMcpGzoSaed9Gjr8HCf3HehExdibyw3OHHEL1als1KmyzcOZZH4MjbObI8TkWsEr7bc7gsW0WTDni+qQ==
   dependencies:
     "@types/superagent" "*"