Bump the vitest group with 4 updates

Bumps the vitest group with 4 updates: [@vitest/browser](https://github.com/vitest-dev/vitest/tree/HEAD/packages/browser), [@vitest/coverage-istanbul](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-istanbul), [@vitest/eslint-plugin](https://github.com/vitest-dev/eslint-plugin-vitest) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `@vitest/browser` from 3.2.4 to 4.0.6
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.6/packages/browser)

Updates `@vitest/coverage-istanbul` from 3.2.4 to 4.0.6
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.6/packages/coverage-istanbul)

Updates `@vitest/eslint-plugin` from 1.3.16 to 1.4.0
- [Release notes](https://github.com/vitest-dev/eslint-plugin-vitest/releases)
- [Commits](vitest-dev/eslint-plugin-vitest@v1.3.16...v1.4.0)

Updates `vitest` from 3.2.4 to 4.0.6
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v4.0.6/packages/vitest)

---
updated-dependencies:
- dependency-name: "@vitest/browser"
  dependency-version: 4.0.6
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vitest
- dependency-name: "@vitest/coverage-istanbul"
  dependency-version: 4.0.6
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vitest
- dependency-name: "@vitest/eslint-plugin"
  dependency-version: 1.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: vitest
- dependency-name: vitest
  dependency-version: 4.0.6
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vitest
...

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

Author: dependabot[bot]

package.json

@@ -51,9 +51,9 @@
   "devDependencies": {
     "@hypothesis/frontend-testing": "^1.7.1",
     "@trivago/prettier-plugin-sort-imports": "^5.2.2",
-    "@vitest/browser": "^3.2.4",
-    "@vitest/coverage-istanbul": "^3.2.4",
-    "@vitest/eslint-plugin": "^1.3.16",
+    "@vitest/browser": "^4.0.8",
+    "@vitest/coverage-istanbul": "^4.0.8",
+    "@vitest/eslint-plugin": "^1.4.2",
     "babel-plugin-istanbul": "^7.0.1",
     "babel-plugin-mockable-imports": "^2.0.1",
     "chai": "^6.2.0",
@@ -71,7 +71,7 @@
     "syn": "^0.2.2",
     "typescript": "^5.9.3",
     "typescript-eslint": "^8.16.0",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.8"
   },
   "engines": {
     "node": ">=6"