Update ONNX version for generated models (#7785)

Author: mc-nv

qa/common/gen_qa_model_repository

@@ -51,7 +51,7 @@
 TRITON_VERSION=${TRITON_VERSION:=24.10}
 
 # ONNX. Use ONNX_OPSET 0 to use the default for ONNX version
-ONNX_VERSION=1.17.0
+ONNX_VERSION=1.16.1
 ONNX_OPSET=0
 
 # OPENVINO version