Upgrade to PyTorch 1.12.1

[xyang16]

Description

Brief description of what this PR is about

Upgrade to PyTorch 1.12.1

• 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 #1894 (46f3493) into master (bb5073f) will decrease coverage by 2.30%.
The diff coverage is 66.78%.

@@             Coverage Diff              @@
##             master    #1894      +/-   ##
============================================
- Coverage     72.08%   69.78%   -2.31%     
- Complexity     5126     5646     +520     
============================================
  Files           473      539      +66     
  Lines         21970    24957    +2987     
  Branches       2351     2706     +355     
============================================
+ Hits          15838    17415    +1577     
- Misses         4925     6206    +1281     
- Partials       1207     1336     +129     

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/MultiBoxPrior.java	76.00% <ø> (ø)
...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% <0.00%> (-5.24%)	⬇️
...odality/cv/translator/BigGANTranslatorFactory.java	33.33% <0.00%> (+8.33%)	⬆️
...nslator/InstanceSegmentationTranslatorFactory.java	14.28% <0.00%> (-3.90%)	⬇️
.../cv/translator/SemanticSegmentationTranslator.java	0.00% <0.00%> (ø)
.../cv/translator/StyleTransferTranslatorFactory.java	40.00% <ø> (ø)
... and 438 more

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