Bump styled-components from 5.3.11 to 6.1.8 in /_examples/chat (#2905)

Bumps [styled-components](https://github.com/styled-components/styled-components) from 5.3.11 to 6.1.8.
- [Release notes](https://github.com/styled-components/styled-components/releases)
- [Commits](styled-components/styled-components@v5.3.11...v6.1.8)

---
updated-dependencies:
- dependency-name: styled-components
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

_examples/chat/package.json

@@ -12,7 +12,7 @@
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
     "react-scripts": "^2.1.1",
-    "styled-components": "^5.2.0",
+    "styled-components": "^6.1.8",
     "subscriptions-transport-ws": "^0.9.5",
     "typescript": "^4.9.4"
   },