Update dev-dependencies

Author: wooorm

package.json

@@ -35,7 +35,6 @@
     "types/index.d.ts"
   ],
   "types": "types/index.d.ts",
-  "dependencies": {},
   "devDependencies": {
     "@types/mdast": "^3.0.0",
     "dtslint": "^4.0.0",
@@ -44,7 +43,7 @@
     "remark-cli": "^9.0.0",
     "remark-preset-wooorm": "^8.0.0",
     "tape": "^5.0.0",
-    "xo": "^0.35.0"
+    "xo": "^0.38.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier . -w --loglevel warn && xo --fix",