- Update to version 0.21.0:
* Lots of bugfixes and new features, for details see
https://wiki.freecad.org/Release_notes_0.21 and
https://github.com/FreeCAD/FreeCAD/releases/tag/0.21
- Drop upstream patches:
* 0001-Fix-build-with-NG-6.2.2201-include-BRepMesh_Incremen.patch
* 0001-Part-OCCError.h-remove-unneeded-includes.patch
* 0001-Drawing-add-missing-include.patch
* 0001-FEM-add-missing-include.patch
* 0001-Revert-unused-parameter-warning-change.patch
* 0001-FEM-femmesh-fix-AttributeError-module-numpy-has-no-a.patch
* 0001-Fix-build-with-gcc13.patch
- Fix build on aarch64, correctly link OpenGL, add
0001-Fix-variable-name-for-OpenGL-library.patch