Update changelog for version 2.6.0

Update changelog for version 2.5.0

Update changelog for version 2.4.0

Fix CPLEX early termination before best bound has been found

This was prone to happen after MIP restarts.

Update changelog for version 2.3.0

Fix crash for sky maps with invalid pixels

Add Python 3.12 specifier

Update changelog for version 2.1.0

Reapply "Temporarily remove problematic dependency"

This reverts commit 082b66b.

Temporarily remove problematic dependency