Update dependency msw to v2.12.0

Author: dependencyupdates[bot]

src/Frontend/package-lock.json

@@ -69,7 +69,7 @@
     "eslint-plugin-vue": "10.5.1",
     "globals": "16.4.0",
     "jsdom": "26.1.0",
-    "msw": "2.11.6",
+    "msw": "2.12.0",
     "prettier": "3.6.2",
     "typescript": "5.9.3",
     "typescript-eslint": "8.46.2",