Add to changelog

Author: cderv

news/changelog-1.9.md

@@ -37,6 +37,7 @@ All changes included in 1.9:
 
 ### `pdf`
 
+- ([#13633](https://github.com/quarto-dev/quarto-cli/issues/13633)): Fix detection and auto-installation of babel language packages from newer error format that doesn't explicitly mention `.ldf` filename.
 - ([rstudio/tinytex-releases#49](https://github.com/rstudio/tinytex-releases/issues/49)): Fix detection of LuaTeX-ja missing file errors by matching both "File" and "file" in error messages.
 
 ## Projects