graphics/libjxl: unbreak fetch

fetch: https://github.com/libjxl/libjxl/commit/adb32f3f8f37.patch: size mismatch: expected 5662, actual 5664

-index d87e3d72..02145643 100644
+index d87e3d72f..02145643e 100644

Reported by: Daniel Aleksandersen