Disable trim_trailing_whitespace for CHANGELOG.md (#2227)

Committed-By-Agent: claude

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jar-stripe

.editorconfig

@@ -15,3 +15,6 @@ indent_size = 2
 [*.json]
 indent_style = space
 indent_size = 2
+
+[CHANGELOG.md]
+trim_trailing_whitespace = false