ARIA-compliant disabled link communication raises errors on default config

[gorner]

Per the latest (draft) ARIA in HTML guidelines, a disabled link can be communicated in ARIA using the syntax:

<a role="link" aria-disabled="true">...</a>

with no href attribute.

(further info: https://www.scottohara.me/blog/2021/05/28/disabled-links.html; added to guidelines in w3c/html-aria#305 )

This syntax currently raises two errors with the default configuration:

  error  a tags must have an href attribute  link-href-attributes
  error  Use of redundant or invalid role: link on <a> detected.  no-redundant-role