Bump vitest from 2.1.5 to 2.1.6 (#490)

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 2.1.5 to 2.1.6.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.1.6/packages/vitest)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -19,7 +19,7 @@
     "nuxt": "^3.14.1592",
     "prettier": "^3.3.3",
     "sitemap": "^7.1.1",
-    "vitest": "^2.1.5"
+    "vitest": "^2.1.6"
   },
   "dependencies": {
     "highcharts-vue": "^2.0.1",