OpenVINO model server fail to load model with onnx format

Issue

When Sicket-learn is used to create a model it happen to see the following issue:

Failed to load model due to error: LoadModel errored: rpc error: code = Unknown desc = OVMS model load failed. code: 'UNKNOWN' reason: 'UNKNOWN'

When looking at the ovms pod we notice that certain operation in the model are not supported when serving the model by OVMS :

OpenVINO does not support the following ONNX operations: ai.onnx.ml.LinearClassifier, ai.onnx.ml.ZipMap