chore(deps-dev): bump react-dom and @types/react-dom in /packages/next

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) and [@types/react-dom](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom). These dependencies needed to be updated together.

Updates `react-dom` from 18.3.1 to 19.2.3
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.2.3/packages/react-dom)

Updates `@types/react-dom` from 18.3.7 to 19.2.3
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react-dom)

---
updated-dependencies:
- dependency-name: react-dom
  dependency-version: 19.2.3
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: "@types/react-dom"
  dependency-version: 19.2.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/next/package.json

@@ -60,10 +60,10 @@
   "devDependencies": {
     "@types/node": "^22.19.3",
     "@types/react": "^18.2.0",
-    "@types/react-dom": "^18.3.7",
+    "@types/react-dom": "^19.2.3",
     "next": "^15.0.0",
     "react": "^18.2.0",
-    "react-dom": "^18.3.1",
+    "react-dom": "^19.2.3",
     "tsdown": "^0.11.9",
     "typescript": "^5.4.0",
     "vitest": "^3.2.4"