BUG: Increase size limite for GDCM privatedicts.xml file

> The path 'Modules/ThirdParty/GDCM/src/gdcm/Source/DataDictionary/privatedicts.xml' has size 1033 KiB, greater than allowed 1024 KiB.

.gitattributes

@@ -53,6 +53,7 @@ Modules/Numerics/FEM/src/dsrc2c.c hooks-max-size=260000
 Modules/ThirdParty/** hooks-max-size=300000 hooks.style=
 Modules/ThirdParty/NIFTI/src/nifti/nifti2/nifti2_io.c hooks-max-size=400000
 Modules/ThirdParty/ZLIB/src/itkzlib-ng/crc32_braid_tbl.h hooks-max-size=700000
+Modules/ThirdParty/GDCM/src/gdcm/Source/DataDictionary/privatedicts.xml hooks-max-size=400000
 Modules/Filtering/Denoising/include/itkPatchBasedDenoisingImageFilter.hxx hooks-max-size=120000
 Documentation/docs/releases/* hooks-max-size=300000
 Utilities/Doxygen/doxygen.config.in       hooks-max-size=150000