[api] Allows to load .pt or .onnx file from jar url

[frankfliu]

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]

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Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.29%. Comparing base (bb5073f) to head (4ec3007).
Report is 1304 commits behind head on master.

Files with missing lines	Patch %	Lines
.../java/ai/djl/repository/RepositoryFactoryImpl.java	50.00%	0 Missing and 1 partial ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2955      +/-   ##
============================================
+ Coverage     72.08%   72.29%   +0.20%     
- Complexity     5126     7282    +2156     
============================================
  Files           473      722     +249     
  Lines         21970    32506   +10536     
  Branches       2351     3391    +1040     
============================================
+ Hits          15838    23499    +7661     
- Misses         4925     7386    +2461     
- Partials       1207     1621     +414     

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[StefanOltmann]

Good change :)