build(deps-dev): bump @nestjs/testing from 9.2.1 to 9.4.2

Bumps [@nestjs/testing](https://github.com/nestjs/nest/tree/HEAD/packages/testing) from 9.2.1 to 9.4.2.
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v9.4.2/packages/testing)

---
updated-dependencies:
- dependency-name: "@nestjs/testing"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -31,7 +31,7 @@
     "@nestjs/core": "9.2.1",
     "@nestjs/platform-fastify": "9.2.1",
     "@nestjs/terminus": "9.1.4",
-    "@nestjs/testing": "9.2.1",
+    "@nestjs/testing": "9.4.2",
     "@types/jest": "29.2.5",
     "@types/node": "16.18.11",
     "@typescript-eslint/eslint-plugin": "5.47.1",