Add support onnx instance norm

[tye-singwa]

Pull Request Template

Checklist

• Confirmed that cargo run-checks command has been executed.
• Made sure the book is up to date with changes in this PR.

Related Issues/PRs

#1714

Changes

Adding InstanceNorm onnx support

Testing

Added tests for 1d, 2d and 3d

[codecov]

Codecov Report

Attention: Patch coverage is 99.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 82.19%. Comparing base (f18cb7f) to head (89bf199).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/onnx-ir/src/node/instance_norm.rs	97.61%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3177      +/-   ##
==========================================
+ Coverage   82.14%   82.19%   +0.04%     
==========================================
  Files         956      962       +6     
  Lines      121842   122340     +498     
==========================================
+ Hits       100090   100559     +469     
- Misses      21752    21781      +29     

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