Bump vitest from 0.28.5 to 0.31.1

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 0.28.5 to 0.31.1.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v0.31.1/packages/vitest)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -25,7 +25,7 @@
         "typescript": "^4.9.5",
         "vite": "^4.0.0",
         "vite-plugin-compression2": "^0.9.1",
-        "vitest": "^0.28.5"
+        "vitest": "^0.31.1"
     },
     "dependencies": {
         "@tinymce/tinymce-vue": "^5.1.0",