docs: Simplify changelog entry to focus on the core fix

Remove implementation details about Craft automation and focus on the
main issue: GITHUB_WORKFLOW_REF cannot be used for script download URLs.

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: vaind

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### Fixes
 
-- Danger and updater download script URLs cannot use GITHUB_WORKFLOW_REF - add Craft release automation with PowerShell version update script and revert to `_workflow_version` input parameter ([#111](https://github.com/getsentry/github-workflows/pull/111))
+- Danger and updater download script URLs cannot use GITHUB_WORKFLOW_REF ([#111](https://github.com/getsentry/github-workflows/pull/111))
 
 ## 2.14.1