Generate new opsets up to 27

[justinchuby]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 61.70213% with 72 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.57%. Comparing base (c03d0dd) to head (6c65389).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
onnxscript/onnx_opset/_impl/opset25.py	52.63%	54 Missing ⚠️
onnxscript/onnx_opset/_impl/opset27.py	64.00%	9 Missing ⚠️
onnxscript/onnx_opset/_impl/opset26.py	72.72%	6 Missing ⚠️
...xscript/onnx_opset/_impl/opset_ai_onnx_preview1.py	78.57%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2958      +/-   ##
==========================================
- Coverage   72.64%   72.57%   -0.07%     
==========================================
  Files         259      263       +4     
  Lines       31770    31957     +187     
  Branches     3007     3007              
==========================================
+ Hits        23079    23194     +115     
- Misses       7672     7744      +72     
  Partials     1019     1019              

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[github-advanced-security]

lintrunner found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.