chore(deps): update vitest monorepo to v4.0.15 (#689)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -69,7 +69,7 @@
     "@rollup/plugin-alias": "6.0.0",
     "@rollup/plugin-replace": "6.0.3",
     "@types/node": "24.10.1",
-    "@vitest/coverage-istanbul": "4.0.14",
+    "@vitest/coverage-istanbul": "4.0.15",
     "eslint": "9.39.1",
     "eslint-config-mister-hope": "0.9.6",
     "husky": "9.1.7",
@@ -80,7 +80,7 @@
     "rollup-plugin-dts": "6.3.0",
     "rollup-plugin-esbuild": "6.2.1",
     "typescript": "5.9.3",
-    "vitest": "4.0.14"
+    "vitest": "4.0.15"
   },
   "packageManager": "pnpm@10.24.0",
   "engines": {