fix: remove buggy if check in changelog index gha

[dslovinsky]

Description

Ideally we still only need to run the changelog indexer when a file is added/removed, not modified. But this if check doesn't work, plus its hard to read and annoying to test. Existing changelog files are rarely edited after the fact anyway so we're not losing much by letting the indexer run on every change anyway.

This is not the case for other docs content, but luckily those triggers are much easier since we can just watch docs.yml changes.

Changes Made

• remove buggy if check in changelog index gha

Testing

• I have tested these changes locally
• I have run the validation scripts (pnpm run validate)
• I have checked that the documentation builds correctly

[Copilot]

Pull request overview

This PR removes a buggy conditional check in the changelog indexing GitHub Actions workflow that was intended to run the indexer only when files were added or removed, but was difficult to read, test, and maintain.

Changes:

• Removed the complex if condition that checked for added/removed files in the changelog directory
• Simplified the workflow to run on every changelog-related change instead of only add/remove operations

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[github-actions]

🌿 Documentation Preview

Name	Status	Preview	Updated (UTC)
Alchemy Docs	✅ Ready	🔗 Visit Preview	Jan 15, 2026, 8:32 PM