Change os.rename to shutil.move to allow file overwriting in `ren…

…ame_nifti_files`

This commit replaces the use of `os.rename` with `shutil.move` in the `rename_nifti_files` function. The change allows the function to overwrite files if they already exist in the target directory, resolving the FileExistsError that occurred when attempting to rename NIFTI files with names that already exist.

setup.py

@@ -2,7 +2,7 @@
 
 setup(
     name='moosez',
-    version='2.2.36',
+    version='2.2.37',
     author='Lalith Kumar Shiyam Sundar | Sebastian Gutschmayer',
     author_email='[email protected]',
     description='An AI-inference engine for 3D clinical and preclinical whole-body segmentation tasks',