fix duplicate bug fixes in CHANGELOG

Author: brosaplanella

CHANGELOG.md

@@ -2,10 +2,6 @@
 
 # [v23.5](https://github.com/pybamm-team/PyBaMM/tree/v23.5) - 2023-06-18
 
-## Bug fixes
-
-- Realign 'count' increment in CasadiSolver._integrate() ([#2986](https://github.com/pybamm-team/PyBaMM/pull/2986))
-
 ## Features
 
 - Enable multithreading in IDAKLU solver ([#2947](https://github.com/pybamm-team/PyBaMM/pull/2947))
@@ -19,6 +15,7 @@
 
 ## Bug fixes
 
+- Realign 'count' increment in CasadiSolver._integrate() ([#2986](https://github.com/pybamm-team/PyBaMM/pull/2986))
 - Fix `pybamm_install_odes` and update the required SUNDIALS version ([#2958](https://github.com/pybamm-team/PyBaMM/pull/2958))
 - Fixed a bug where all data included in a BPX was incorrectly assumed to be given as a function of time.([#2957](https://github.com/pybamm-team/PyBaMM/pull/2957))
 - Remove brew install for Mac from the recommended developer installation options for SUNDIALS ([#2925](https://github.com/pybamm-team/PyBaMM/pull/2925))