[torchlib] Fix repeat_interleave when repeats is a symbolic tensor

[xadupre]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 70.38%. Comparing base (50d7e87) to head (6084bec).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
onnxscript/function_libs/torch_lib/ops/core.py	0.00%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2548      +/-   ##
==========================================
- Coverage   70.38%   70.38%   -0.01%     
==========================================
  Files         222      222              
  Lines       26619    26621       +2     
  Branches     2661     2662       +1     
==========================================
  Hits        18736    18736              
- Misses       6969     6971       +2     
  Partials      914      914              

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[justinchuby]

I think there's still dim -> pos_dim