build(deps-dev): bump @types/react-dom from 19.1.8 to 19.1.9

Bumps [@types/react-dom](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom) from 19.1.8 to 19.1.9.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react-dom)

---
updated-dependencies:
- dependency-name: "@types/react-dom"
  dependency-version: 19.1.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "@tailwindcss/postcss": "^4.1.12",
     "@types/node": "24.5.2",
     "@types/react": "^19.1.12",
-    "@types/react-dom": "^19.1.8",
+    "@types/react-dom": "^19.1.9",
     "autoprefixer": "^10.4.21",
     "markdownlint-cli": "^0.45.0",
     "markdownlint-cli2": "^0.18.1",