docs: Fix typo

Author: sue445

CHANGELOG.md

@@ -5,7 +5,7 @@
 [full changelog](http://github.com/ruby-go-gem/ruby_header_parser/compare/v0.4.2...v0.4.3)
 
 * Release gem from GitHub Actions
-* https://github.com/ruby-go-gem/ruby_header_parser/pull/46
+  * https://github.com/ruby-go-gem/ruby_header_parser/pull/46
 
 ## [0.4.2](https://github.com/ruby-go-gem/ruby_header_parser/releases/tag/v0.4.2) - 2025-03-06
 [full changelog](http://github.com/ruby-go-gem/ruby_header_parser/compare/v0.4.1...v0.4.2)