copilot: Document changes in CHANGELOG. Refs #597.

Author: ivanperez-keera

copilot/CHANGELOG

@@ -1,7 +1,8 @@
-2025-02-24
+2025-03-05
         * Include missing dependencies in installation instructions. (#591)
         * Update version of GHC in README. (#590)
         * Add example of how to use proveWithCounterExample. (#589)
+        * List all Copilot packages in installation command in README. (#597)
 
 2025-01-07
         * Version bump (4.2). (#577)