Meta: replace WAI-ARIA with ARIA in HTML in PR template

This is the specification that is more likely to be impacted.

Author: annevk

PULL_REQUEST_TEMPLATE.md

@@ -17,7 +17,7 @@ If you think your PR is ready to land, please double-check that the build is pas
    * WebKit: …
    * Deno (only for timers, structured clone, base64 utils, channel messaging, module resolution, web workers, and web storage): …
    * Node.js (only for timers, structured clone, base64 utils, channel messaging, and module resolution): …
-- [ ] Corresponding [HTML AAM](https://w3c.github.io/html-aam/) & [WAI-ARIA](https://w3c.github.io/aria/) issues & PRs:
+- [ ] Corresponding [HTML AAM](https://w3c.github.io/html-aam/) & [ARIA in HTML](https://w3c.github.io/html-aria/) issues & PRs:
 - [ ] [MDN issue](https://github.com/whatwg/meta/blob/main/MAINTAINERS.md#handling-pull-requests) is filed: …
 - [ ] The top of this comment includes a [clear commit message](https://github.com/whatwg/meta/blob/main/COMMITTING.md) to use. <!-- If you created this PR from a single commit, Github copied its message. Otherwise, you need to add a commit message yourself. -->