Replaced ParquetFiles.jl with Parquet.jl (#2411)
Replaced ParquetFiles.jl with Parquet.jl (#2411)

As there are long-standing issues that makes ParquetFiles unusable see https://github.com/queryverse/ParquetFiles.jl/pulls where ParquetFiles.jl has not updated to Parquet 0.6 and is still relying on Parquet 0.4.

Also, Parquet.jl can read and write Parquet files now and although it is not feature-complete it is a much better alternative to ParquetFiles.jl now.
JuliaStats/DataFrames.jl