Update dev-dependencies

Author: wooorm

package.json

@@ -60,7 +60,7 @@
     "tape": "^5.0.0",
     "type-coverage": "^2.0.0",
     "typescript": "^4.0.0",
-    "unified": "^9.0.0",
+    "unified": "^10.0.0",
     "unist-builder": "^3.0.0",
     "xo": "^0.39.0"
   },

test/index.js

@@ -12,7 +12,7 @@
 import fs from 'fs'
 import path from 'path'
 import test from 'tape'
-import unified from 'unified'
+import {unified} from 'unified'
 import remarkParse from 'remark-parse'
 import remarkGfm from 'remark-gfm'
 import remarkFootnotes from 'remark-footnotes'