Update dev-dependencies

Author: wooorm

package.json

@@ -40,8 +40,8 @@
     "is-hidden": "^1.1.0",
     "mdast-util-assert": "^1.0.0",
     "negate": "^1.0.0",
-    "nyc": "^10.1.2",
-    "rehype-parse": "^3.1.0",
+    "nyc": "^11.0.0",
+    "rehype-parse": "^4.0.0",
     "remark-parse": "^3.0.0",
     "remark-stringify": "^3.0.0",
     "tape": "^4.6.3",