fix: remove use of deprecated make_scalar_function
          #906
        
          
      
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Rationale for this change
make_scalar_functionhas been deprecated since v36. It is being removed from the public api in v43.What changes are included in this PR?
datafusionalready provides utilities for convertingColumnarValueto and fromArrayRef, so I simply used those to convert the input and output into whatScalarUDFrequires.Are there any user-facing changes?
No.
Additional Context
It may be useful to review how upstream previously converted functions that use ArrayRef to ScalarUDF.
https://github.com/apache/datafusion/blob/8e8bb89a285c6fe6e8186378b7798d3d213f08f7/datafusion/physical-expr/src/functions.rs#L79-L122