Bump styled-components from 5.3.6 to 6.1.15

Bumps [styled-components](https://github.com/styled-components/styled-components) from 5.3.6 to 6.1.15.
- [Release notes](https://github.com/styled-components/styled-components/releases)
- [Commits](https://github.com/styled-components/styled-components/compare/v5.3.6...styled-components@6.1.15)

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

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

Author: dependabot[bot]

apps/playground/package.json

@@ -15,7 +15,7 @@
     "react-dom": "^18.2.0",
     "react-router-dom": "^5.2.0",
     "react-use-intercom": "workspace:*",
-    "styled-components": "^5.3.6",
+    "styled-components": "^6.1.15",
     "styled-normalize": "^8.0.7"
   },
   "devDependencies": {