Update CRAN comments

Author: seananderson

cran-comments.md

@@ -6,9 +6,9 @@ This version fixes several bugs and adds minor functionality.
 
 ## Test environments
 
-* Local M2 macOS install, R 4.4.0
+* Local M2 macOS install, R 4.4.3
 * Intel macOS (on github-actions), R-release
-* Ubuntu 22.04.3 (on github-actions), R-release
+* Ubuntu 24.04.2 (on github-actions), R-release
 * Windows (on github-actions), R-release
 * Windows (winbuilder), R-devel
 * Windows (winbuilder), R-release