refactor(template-require-presentational-children): source role list from aria-query

[johanrd]

This PR is part of a broader a11y parity audit comparing our rules against jsx-a11y, vue-a11y, angular-eslint-template, and lit-a11y.

Replaces the hand-maintained list of 14 roles that require presentational children with a derivation from aria-query:

const { roles } = require('aria-query');
const ROLES_REQUIRING_PRESENTATIONAL_CHILDREN = new Set(
  [...roles.keys()].filter((role) => roles.get(role).childrenPresentational)
);

Before/after

	Before	After
Roles covered	14 (WAI-ARIA core)	16 (adds doc-pagebreak, graphics-symbol)

aria-query's childrenPresentational flag is set on the 16 roles that the WAI-ARIA 1.2 §5.2.9 + DPUB-ARIA 1.1 + Graphics-ARIA 1.0 specs mark with the Children Presentational rule.

Behavior expansion — DPUB / Graphics-ARIA

This PR adds two roles beyond WAI-ARIA core. Anyone using role="doc-pagebreak" or role="graphics-symbol" with semantic descendants will now see new warnings:

{{! Previously silently accepted, now flagged: }}
<div role="doc-pagebreak"><h2>pg</h2></div>
<div role="graphics-symbol"><text>X</text></div>

These are correct per the specs — both roles are defined to have presentational children — but the expansion is worth flagging for projects that consume DPUB-ARIA or Graphics-ARIA.

Follow-up note

template-no-invalid-role on master still carries a hand-maintained WAI-ARIA-only list — it will flag role="doc-pagebreak" as invalid. #2729 (currently open) addresses that: once merged, template-no-invalid-role will source its role set from aria-query too, and the two rules will agree on DPUB/Graphics-ARIA recognition.

Spec reference

• WAI-ARIA 1.2 §5.2.9 — Children Presentational
• DPUB-ARIA 1.1 — doc-pagebreak (W3C Recommendation 12 June 2025)
• Graphics-ARIA 1.0 — graphics-symbol (W3C Recommendation 02 October 2018)