Update dev-dependencies

Author: wooorm

package.json

@@ -51,7 +51,7 @@
     "@types/react": "^16.0.0",
     "@types/virtual-dom": "^2.0.0",
     "browserify": "^16.0.0",
-    "dtslint": "^3.6.2",
+    "dtslint": "^3.0.0",
     "hyperscript": "^2.0.0",
     "nyc": "^15.0.0",
     "prettier": "^2.0.0",
@@ -67,7 +67,7 @@
     "virtual-dom": "^2.0.0",
     "vue": "^2.0.0",
     "vue-server-renderer": "^2.0.0",
-    "xo": "^0.30.0"
+    "xo": "^0.32.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier --write \"**/*.{js,ts}\" && xo --fix",