Accessibility fixes for ToggleSwitch

[TylerJDev]

Closes https://github.com/github/primer/issues/3463

Stemming from @camertron's work in #3902

Example story

Changelog

New

• Adds new props loadingLabelDelay and loadingLabel

Changed

• Makes aria-labelledby a required prop
• Utilizes aria-disabled instead of disabled

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; if selected, include a brief description as to why

Testing & Reviewing

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Storybook)
• Changes are SSR compatible
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge
• (GitHub staff only) Integration tests pass at github/github. ⚠️ Requires small test change to pass.

[changeset-bot]

🦋 Changeset detected

Latest commit: 3d24041

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

This PR includes changesets to release 1 package

Name	Type
@primer/react	Minor

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[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	90.23 KB (+0.23% 🔺)
packages/react/dist/browser.umd.js	90.47 KB (+0.39% 🔺)

[github-actions]

👋 Hi, there are new commits since the last successful integration test. We recommend running the integration workflow once more, unless you are sure the new changes do not affect github/github. Thanks!

[primer-integration]

👋 Hi from github/github! Your integration PR is ready: https://github.com/github/github/pull/394584

[primer-integration]

🟢 golden-jobs completed with status success.

[github-actions]

👋 Hi, there are new commits since the last successful integration test. We recommend running the integration workflow once more, unless you are sure the new changes do not affect github/github. Thanks!

[github-actions]

👋 Hi, there are new commits since the last successful integration test. We recommend running the integration workflow once more, unless you are sure the new changes do not affect github/github. Thanks!