onnxruntime

4aca8f33 - [Bug Fix] Missing CustomOp SchemaRegister when generator EPContext ONNX model (#23091)

[Bug Fix] Missing CustomOp SchemaRegister when generator EPContext ONNX model (#23091) ### Description Enhancements to EPContext Operations: 1. Introduced support for the bfloat16 data type in EPContext operations. 2. Bug Fix: Missing Custom OP Schema Registration when generator EPContext ONNX model --------- Co-authored-by: mingyue <mingyue@xilinx.com> Co-authored-by: Hector Li <hecli@microsoft.com>