ENH: Update NrrdIO from upstream

The NrrdIO repository recently moved to git

```
git clone https://git.code.sf.net/p/teem/nrrdio/nrrdio.git NrrdIO
```

These changes represent the head of NrrdIO as of 2025-10-22, with
synchronization between the ITK codebase and the NrrdIO codebase.

Author: hjmjohnson

Modules/ThirdParty/NrrdIO/src/CMakeLists.txt

@@ -3,5 +3,15 @@ set(ITK3P_INSTALL_INCLUDE_DIR "${ITKNrrdIO_INSTALL_INCLUDE_DIR}")
 set(ITK3P_INSTALL_RUNTIME_DIR "${ITKNrrdIO_INSTALL_RUNTIME_DIR}")
 set(ITK3P_INSTALL_LIBRARY_DIR "${ITKNrrdIO_INSTALL_LIBRARY_DIR}")
 set(ITK3P_INSTALL_ARCHIVE_DIR "${ITKNrrdIO_INSTALL_ARCHIVE_DIR}")
+
+set(NRRD_LIBRARY_PREFIX ITK)
+set(NRRDIO_USE_ZLIB  OFF)
+add_definitions(-DTEEM_ZLIB=1)
+set(NRRDIO_COMPRESSION_LIBRARIES ${ITKZLIB_LIBRARIES})
+if(UNIX)
+  list(APPEND NRRDIO_COMPRESSION_LIBRARIES m)
+endif()
+
+set(NRRDIO_USE_BZIP2 OFF)
 add_subdirectory(NrrdIO)
 itk_module_target(ITKNrrdIO NO_INSTALL)