Update dev-dependencies

Author: wooorm

package.json

@@ -36,15 +36,15 @@
     "unist-util-is": "^5.0.0"
   },
   "devDependencies": {
-    "@types/node": "^18.0.0",
-    "c8": "^7.0.0",
+    "@types/node": "^20.0.0",
+    "c8": "^8.0.0",
     "mdast-util-from-markdown": "^1.0.0",
     "prettier": "^2.0.0",
     "remark-cli": "^11.0.0",
     "remark-preset-wooorm": "^9.0.0",
     "type-coverage": "^2.0.0",
-    "typescript": "^4.0.0",
-    "xo": "^0.53.0"
+    "typescript": "^5.0.0",
+    "xo": "^0.54.0"
   },
   "scripts": {
     "prepack": "npm run build && npm run format",