Fix changelog

Author: Gabefire

libs/labelbox/CHANGELOG.md

@@ -1,7 +1,8 @@
 # Changelog
-# Version 6.7.0 (2025-02-05)
+# Version 6.7.0 (2025-02-06)
 ## Added
-* MAL support for pdf relationships([#1932](https://github.com/Labelbox/labelbox-python/pull/1932))
+* MAL support for pdf relationships (beta)([#1932](https://github.com/Labelbox/labelbox-python/pull/1932))
+* Allow setting read_only for relationships (beta)([#1950](https://github.com/Labelbox/labelbox-python/pull/1950))
 
 # Version 6.6.0 (2025-01-14)
 ## Added