Avoid AWS S3 Filesystem warnings about not all bytes have been read

While running a pipeline on AWS Glue I noticed a recurrent warning:

WARN S3AbortableInputStream: Not all bytes were read from the S3ObjectInputStream, aborting HTTP connection. This is likely an error and may result in sub-optimal behavior. Request only the bytes you need via a ranged GET or drain the input stream after use.

This seems to be related to not fully consuming the input stream when reading files from AWS S3.