fix(segment, segment-button): use correct tablist and tab roles for screen readers

[willmartian]

Pull request checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)
• Build (npm run build) was run locally and any changes were pushed
• Lint (npm run lint) has passed locally and any fixes were made for failures

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: resolves #23059

What is the new behavior?

• ion-segment now uses role="tablist"
• ion-segment-button now uses role="tab" and updates aria-selected based on its selected state
• ion-segment-button now passes the aria-controls attribute to its child button element

Does this introduce a breaking change?

• Yes
• No

[liamdebeasi]

Great job!