Update dev-dependencies

Author: wooorm

package.json

@@ -58,7 +58,7 @@
     "@types/hast": "^3.0.0",
     "@types/mdast": "^4.0.0",
     "@types/node": "^20.0.0",
-    "c8": "^9.0.0",
+    "c8": "^10.0.0",
     "prettier": "^3.0.0",
     "remark-cli": "^12.0.0",
     "remark-preset-wooorm": "^10.0.0",