build(deps-dev): Bump @nestjs/testing from 10.4.8 to 10.4.9

Bumps [@nestjs/testing](https://github.com/nestjs/nest/tree/HEAD/packages/testing) from 10.4.8 to 10.4.9.
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.9/packages/testing)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -55,7 +55,7 @@
   "devDependencies": {
     "@nestjs/cli": "^10.4.8",
     "@nestjs/schematics": "^10.2.3",
-    "@nestjs/testing": "^10.4.8",
+    "@nestjs/testing": "^10.4.9",
     "@types/express": "^5.0.0",
     "@types/jest": "^29.5.14",
     "@types/js-yaml": "^4.0.9",