Config failure for python static build
On ubuntu 20.04, the following config gives an error for the current release head:
```bash
cmake -G Ninja ../vtk-gitlab -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF \
-DVTK_BUILD_TESTING=OFF -DVTK_PYTHON_VERSION=3 -DVTK_WRAP_PYTHON=ON
```
```text
CMake Error at CMake/vtkModuleWrapPython.cmake:987 (target_link_libraries):
INTERFACE library can only be used with the INTERFACE keyword of
target_link_libraries
```
The cmake code in question:
```cmake
if (_vtk_python_UTILITY_TARGET)
target_link_libraries("${_vtk_python_TARGET_NAME}"
PRIVATE
"${_vtk_python_UTILITY_TARGET}")
endif ()
```
Tested with cmake 3.16.3 and with 3.21, both produced the same error.
issue