build(deps-dev): bump supertest from 6.3.4 to 7.1.4

Bumps [supertest](https://github.com/ladjs/supertest) from 6.3.4 to 7.1.4.
- [Release notes](https://github.com/ladjs/supertest/releases)
- [Commits](forwardemail/supertest@v6.3.4...v7.1.4)

---
updated-dependencies:
- dependency-name: supertest
  dependency-version: 7.1.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -65,7 +65,7 @@
     "koa-bodyparser": "^4.4.1",
     "koa-router": "^13.1.1",
     "memfs": "^4.36.0",
-    "supertest": "^6.3.4",
+    "supertest": "^7.1.4",
     "typescript": "^5.8.3",
     "vitest": "^3.2.4"
   }