[xgb] Avoid download cudf dependency at build time

[frankfliu]

Change-Id: I35a5b5cf91cda9095369f35b7b609a78070b50b3

Description

Brief description of what this PR is about

• If this change is a backward incompatible change, why must this change be made?
• Interesting edge cases to note here

[codecov-commenter]

Codecov Report

Merging #1694 (7217d9e) into master (bb5073f) will decrease coverage by 1.45%.
The diff coverage is 65.44%.

@@             Coverage Diff              @@
##             master    #1694      +/-   ##
============================================
- Coverage     72.08%   70.63%   -1.46%     
- Complexity     5126     5520     +394     
============================================
  Files           473      521      +48     
  Lines         21970    24431    +2461     
  Branches       2351     2648     +297     
============================================
+ Hits          15838    17256    +1418     
- Misses         4925     5864     +939     
- Partials       1207     1311     +104     

Impacted Files	Coverage Δ
api/src/main/java/ai/djl/modality/cv/Image.java	69.23% <ø> (-4.11%)	⬇️
...rc/main/java/ai/djl/modality/cv/output/Joints.java	71.42% <ø> (ø)
.../main/java/ai/djl/modality/cv/output/Landmark.java	100.00% <ø> (ø)
...main/java/ai/djl/modality/cv/output/Rectangle.java	72.41% <0.00%> (ø)
...i/djl/modality/cv/translator/BigGANTranslator.java	21.42% <ø> (-5.24%)	⬇️
...odality/cv/translator/BigGANTranslatorFactory.java	33.33% <0.00%> (+8.33%)	⬆️
...nslator/InstanceSegmentationTranslatorFactory.java	14.28% <0.00%> (-3.90%)	⬇️
.../ai/djl/modality/cv/translator/YoloTranslator.java	8.33% <0.00%> (-0.50%)	⬇️
.../modality/cv/translator/YoloTranslatorFactory.java	8.33% <0.00%> (-1.67%)	⬇️
...i/djl/modality/cv/translator/YoloV5Translator.java	5.38% <0.00%> (-0.31%)	⬇️
... and 278 more

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