Bump vitest in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the / directory: [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `vitest` from 2.1.8 to 2.1.9
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.1.9/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -24,7 +24,7 @@
     "vite": "^6.0.11",
     "vite-plugin-rails": "^0.5.0",
     "vite-plugin-ruby": "^5.1.1",
-    "vitest": "^2.1.8"
+    "vitest": "^2.1.9"
   },
   "optionalDependencies": {
     "@rollup/rollup-linux-x64-gnu": "4.6.1"