Update dev-dependencies

Author: wooorm

package.json

@@ -26,8 +26,8 @@
   "devDependencies": {
     "browserify": "^14.0.0",
     "esmangle": "^1.0.0",
-    "remark": "^7.0.0",
-    "remark-cli": "^3.0.0",
+    "remark": "^8.0.0",
+    "remark-cli": "^4.0.0",
     "remark-preset-wooorm": "^3.0.0",
     "nyc": "^11.0.0",
     "tape": "^4.6.2",