Bump @types/supertest in /generators/node-server/resources (#346)

Bumps [@types/supertest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/supertest) from 2.0.10 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
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

generators/node-server/resources/package.json

@@ -45,7 +45,7 @@
     "@types/jwt-decode": "3.1.0",
     "@types/node": "^20.8.10",
     "@types/passport-jwt": "3.0.3",
-    "@types/supertest": "2.0.10",
+    "@types/supertest": "2.0.15",
     "@typescript-eslint/eslint-plugin": "6.9.1",
     "@typescript-eslint/eslint-plugin-tslint": "6.9.1",
     "@typescript-eslint/parser": "6.9.1",