chore: bump react-dom from 18.2.0 to 18.3.0 in /web/playground

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) from 18.2.0 to 18.3.0.
- [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/HEAD/packages/react-dom)

---
updated-dependencies:
- dependency-name: react-dom
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

web/playground/package.json

@@ -20,7 +20,7 @@
     "monaco-editor": "^0.48.0",
     "prql-js": "file:../../prqlc/bindings/js",
     "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react-dom": "^18.3.0",
     "react-syntax-highlighter": "^15.5.0",
     "web-vitals": "^3.5.0",
     "yaml": "^2.4.0"