auto dependabot: bump @vitest/ui from 1.6.0 to 2.0.0

Bumps [@vitest/ui](https://github.com/vitest-dev/vitest/tree/HEAD/packages/ui) from 1.6.0 to 2.0.0.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.0.0/packages/ui)

---
updated-dependencies:
- dependency-name: "@vitest/ui"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -7,7 +7,7 @@
     "@types/sinon": "^17.0.3",
     "@vitest/browser": "^1.6.0",
     "@vitest/coverage-v8": "^1.6.0",
-    "@vitest/ui": "^1.6.0",
+    "@vitest/ui": "^2.0.0",
     "eslint": "^8.56.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-header": "^3.1.1",