Merge topic 'backport-fixes-for-pv' into paraview/release

bb974e2a vtkTableBasedClipDataSet: Add check to avoid nullptr access
6bf984f9 vtkHigherOrderTetra: Add size check
edbb983b vtkGenericCell: Return when cell is nullptr
aeeb3225 Fixed out of bounds string access found by ASan
7ce34755 vtkHDF: fix overflow issue
9480cd6e Numerically sort folder contents
b9b37da4 vtkTextureObject: Check for context before binding texture

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Reviewed-by: Mathieu Westphal (Kitware) <mathieu.westphal@kitware.com>
Reviewed-by: Nicolas Vuaille <nicolas.vuaille@kitware.com>
Merge-request: !11810