fix(tabs): roles in sr

[bennypowers]

What I did

1. apply role to tab and tab-panel elements directly, via TabsAriaController

Testing Instructions

1. Closes #2692, see lighthouse results there

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 918bc0fc7c30ff25d03c43e4a33227dcd5569e3f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

| Name | Type | | -------------------- | ----- | | @patternfly/elements | Patch |

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[netlify[bot]]

✅ Deploy Preview for patternfly-elements ready!

Name	Link
🔨 Latest commit	ba23667b3373b062a41824afce48a513ea93f07b
😎 Deploy Preview	https://deploy-preview-2731--patternfly-elements.netlify.app/

---

To edit notification comments on pull requests, go to your Netlify site settings.