Prepare Release

[github-actions]

This PR is a preview of the release that release-plan has prepared. To release you should just merge this PR 👍

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Release (2026-06-01)

• ember-primitives 0.59.2 (patch)
• which-heading-do-i-need 0.3.0 (minor)

🚀 Enhancement

• which-heading-do-i-need
  • #761 Use more strict type for heading level (@bertdeblock)

📝 Documentation

• #763 docs(contributor): contributors readme action update (@github-actions[bot])
• #756 docs(contributor): contributors readme action update (@github-actions[bot])

🏠 Internal

• Other
  • #758 Update demo (@NullVoxPopuli)
• ember-primitives
  • #755 Add eslint-plugin-compat to lint addon source against supported browsers (@NullVoxPopuli-ai-agent)

Committers: 4

• @NullVoxPopuli's reduced-access machine account for AI usage (@NullVoxPopuli-ai-agent)
• Bert De Block (@bertdeblock)
• GitHub Actions [Bot] (@github-actions)
• @NullVoxPopuli

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