[rust] Support pre-downloaded rust shared library

[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]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 28.57143% with 25 lines in your changes missing coverage. Please review.

Project coverage is 58.31%. Comparing base (c4baffb) to head (63a32a4).
Report is 69 commits behind head on master.

Files with missing lines	Patch %	Lines
...va/ai/djl/huggingface/tokenizers/jni/LibUtils.java	28.57%	21 Missing and 4 partials ⚠️

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3421      +/-   ##
============================================
+ Coverage     58.25%   58.31%   +0.06%     
- Complexity     5737     5770      +33     
============================================
  Files           668      668              
  Lines         32509    32621     +112     
  Branches       3439     3468      +29     
============================================
+ Hits          18937    19022      +85     
- Misses        12125    12142      +17     
- Partials       1447     1457      +10     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.