Used method deleted since Falcon 2.0.0

[dantunescost]

Hello, I'm currently using Falsy and I noticed that a deleted method is used in a file. Falcon's 2.0.0 release deleted the method "get_param_as_dict" that is used in the operator_loader.py file. This method needs to be changed to "get_param_as_json" or a specific Falcon release (<2.0.0) needs to be specified in the requirements.txt file. I noticed this when having a parameter of type array in query.