build(deps): bump react-icons from 4.12.0 to 5.6.0

Bumps [react-icons](https://github.com/react-icons/react-icons) from 4.12.0 to 5.6.0.
- [Release notes](https://github.com/react-icons/react-icons/releases)
- [Commits](react-icons/react-icons@v4.12.0...v5.6.0)

---
updated-dependencies:
- dependency-name: react-icons
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -64,7 +64,7 @@
     "react": "19.2.4",
     "react-day-picker": "^9",
     "react-dom": "19.2.4",
-    "react-icons": "^4.11.0",
+    "react-icons": "^5.6.0",
     "react-markdown": "^10.1.0",
     "rehype-autolink-headings": "^7.0.0",
     "rehype-pretty-code": "^0.10.1",