Python 3.14 will deprecate `argparse.FileType` [1]. This is due to a
variety of factors, one of which is that the class leaks file
descriptors when used. Remove all usages in the codebase and instead
use a wrapper function for `open`.
[1] https://docs.python.org/3.14/library/argparse.html#argparse.FileType
Package revng's python code in two wheels: `revng` and `revng_internal`.
The revng wheel contains the
`revng.{pipeline_description,model,tupletree}` modules, while the
`revng_internal` one everything under `revng.internal`.