crash on closing parenthesis after autolink

[ChristianMurphy]

Subject of the issue

Parser crashes when there is a closing parenthesis after autolink

Your environment

• OS: Ubuntu
• Packages:

   ├── micromark-extension-gfm@0.3.2
   └── micromark@2.11.2

• Env: Node v15.2.1, npm 7.0.8

Steps to reproduce

const micromark = require("micromark/lib");
const gfmSyntax = require("micromark-extension-gfm");

micromark("www.a.)", "utf-8", { extensions: [gfmSyntax()] });

Expected behavior

Text should display as

www.a.)

Actual behavior

AssertionError [ERR_ASSERTION]: expected non-empty token (`literalAutolinkWwwPath`)

[wooorm]

www.a.)

^--- well wtf, GH...