Update dependency styled-components to v6

Author: renovate[bot]

package.json

@@ -30,7 +30,7 @@
     "react-share": "^4.4.1",
     "reading-time": "^1.5.0",
     "schema-dts": "^1.1.2",
-    "styled-components": "^5.3.5",
+    "styled-components": "^6.0.0",
     "swiper": "9.3.2",
     "tinacms": "^1.5.8",
     "url-loader": "^4.1.1",