SimpleITK Release v2.5.0rc2

To upgrade to this Python binary package run: pip install --upgrade --pre SimpleITK --find-links https://github.com/SimpleITK/SimpleITK/releases/tag/v2.5.0rc2

What’s Changed

• Update Superbuild ITK version to v5.4.3 tag by @blowekamp in https://github.com/SimpleITK/SimpleITK/pull/2256

Full Changelog: https://github.com/SimpleITK/SimpleITK/compare/v2.5.0rc1…v2.5.0rc2