Update dependency @vitest/coverage-v8 to v4.0.8

Author: dependencyupdates[bot]

src/Frontend/package.json

@@ -59,7 +59,7 @@
     "@types/jsdom": "27.0.0",
     "@types/node": "24.9.1",
     "@vitejs/plugin-vue": "6.0.1",
-    "@vitest/coverage-v8": "4.0.4",
+    "@vitest/coverage-v8": "4.0.8",
     "@vue/tsconfig": "0.8.1",
     "cross-env": "10.1.0",
     "eslint": "9.38.0",