Update changelog for 6.0.2-1 release

debian/changelog

+phpunit-recursion-context (6.0.2-1) experimental; urgency=medium
+
+  [ Sebastian Bergmann ]
+  * Use PHPStan instead of Psalm
+  * Prepare release
+
+  [ Markus Staab ]
+  * Use more efficient `spl_object_id()` over `spl_object_hash()`
+
+  [ David Prévot ]
+  * Update Standards-Version to 4.7.0
+
+ -- David Prévot <taffit@debian.org>  Thu, 18 Jul 2024 11:14:00 +0900
+
 phpunit-recursion-context (6.0.0-1) experimental; urgency=medium
 
   [ Sebastian Bergmann ]