chore(deps-dev): bump vitest from 3.2.7 to 5.0.3

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 3.2.7 to 5.0.3.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/v5.0.3/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 5.0.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

api/package.json

@@ -58,7 +58,7 @@
     "tsx": "^4.23.12",
     "typescript": "^5.8.3",
     "vite": "^6.4.2",
-    "vitest": "^3.1.1"
+    "vitest": "^5.0.3"
   },
   "engines": {
     "node": ">=18.0.0"

backend/package.json

@@ -76,6 +76,6 @@
     "tsx": "^4.23.12",
     "typescript": "^5.8.3",
     "vite": "^6.4.2",
-    "vitest": "^3.1.1"
+    "vitest": "^5.0.3"
   }
 }

frontend/package.json

@@ -56,6 +56,6 @@
     "jsdom": "^29.1.1",
     "typescript": "^5.8.3",
     "vite": "^6.4.2",
-    "vitest": "^3.1.1"
+    "vitest": "^5.0.3"
   }
 }