fix(radio): persist checked state when items are updated in radio-group (#29457)

Issue number: resolves #29442

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## What is the current behavior?
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The state does not stay consistent when the data used to render the
radios are updated.

## What is the new behavior?
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this PR. -->

- The state updates after the component loads, this allows the value to
be set after the radio is rendered.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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Dev build: 8.1.1-dev.11714760012.1eab947e

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Co-authored-by: Sean Perkins <13732623+sean-perkins@users.noreply.github.com>