chore(deps): update dependency protobuf to v4

renovate[bot] · web-flow · commit 736ca20fc7fe · 2022-07-15T17:48:00.000Z
diff --git a/setup.py b/setup.py
@@ -58,7 +58,7 @@
     "sklearn": ["scikit-learn"],
     "onnx": ["onnx"],
     "onnxruntime": [
-        "protobuf==3.20.1",
+        "protobuf==4.21.2",
         "onnxruntime",
     ],  # TODO - see if it can be merged with onnx
     "catboost": ["catboost"],
