chore(deps): bump @rainbow-me/rainbowkit from 2.1.3 to 2.1.6

Bumps [@rainbow-me/rainbowkit](https://github.com/rainbow-me/rainbowkit/tree/HEAD/packages/rainbowkit) from 2.1.3 to 2.1.6.
- [Release notes](https://github.com/rainbow-me/rainbowkit/releases)
- [Changelog](https://github.com/rainbow-me/rainbowkit/blob/main/packages/rainbowkit/CHANGELOG.md)
- [Commits](https://github.com/rainbow-me/rainbowkit/commits/@rainbow-me/[email protected]/packages/rainbowkit)

---
updated-dependencies:
- dependency-name: "@rainbow-me/rainbowkit"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -19,7 +19,7 @@
     "@builtbymom/web3": "^0.0.201",
     "@cowprotocol/cow-sdk": "2.1.0",
     "@headlessui/react": "^2.0.4",
-    "@rainbow-me/rainbowkit": "2.1.3",
+    "@rainbow-me/rainbowkit": "2.1.6",
     "@tailwindcss/typography": "^0.5.13",
     "@tanstack/react-query": "^5.51.11",
     "@wagmi/core": "^2.11.7",