Zipline Reloaded 3.2.1 Released

Zipline Reloaded 3.2.1 is a maintenance release focused on the Python 3.11-3.14 support range, still excluding Pandas 3 and Python 3.15. This release fixes a positional argument boundary error in NYSE/CME calendars, updates the CI and wheel build toolchain, and includes the cibuildwheel 4.3.4 security fix and Windows DLL fix. This release adds no new features and only addresses compatibility and critical defect maintenance.