build(deps-dev): bump vitest and @vitest/coverage-istanbul

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) and [@vitest/coverage-istanbul](https://github.com/vitest-dev/vitest/tree/HEAD/packages/coverage-istanbul). These dependencies needed to be updated together.

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)

Updates `@vitest/coverage-istanbul` 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/coverage-istanbul)

---
updated-dependencies:
- dependency-name: vitest
  dependency-type: direct:development
- dependency-name: "@vitest/coverage-istanbul"
  dependency-type: direct:development
...

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

Author: dependabot[bot]

package-lock.json

@@ -52,7 +52,7 @@
 		"@types/react-select": "^5.0.1",
 		"@types/react-sortable-tree": "^0.3.23",
 		"@vitejs/plugin-react": "^4.3.4",
-		"@vitest/coverage-istanbul": "^2.1.8",
+		"@vitest/coverage-istanbul": "^2.1.9",
 		"bestzip": "^2.2.1",
 		"cross-env": "^7.0.3",
 		"esbuild-plugin-react-virtualized": "^1.0.4",
@@ -70,7 +70,7 @@
 		"vite": "^6.0.6",
 		"vite-envs": "^4.4.10",
 		"vite-tsconfig-paths": "^5.1.4",
-		"vitest": "^2.1.8"
+		"vitest": "^2.1.9"
 	},
 	"dependencies": {
 		"@tanstack/react-query": "^5.59.20",