Prov dependency

[TheChymera]

https://github.com/trungdong/prov hasn't been updated in a while and has no new releases since 2020... The test suite also seems broken.

Is there any chance we could easily remove/replace this dependency? Just going by the source code it only seems to be imported in one place import prov.model as pm... but I'm not sure what that bit of the code is important for 🤔

[TheChymera]

In addition to the above issues, the package also doesn't seem to be tested upstream beyond Python 3.10 .

It seems pm. after the above import is used extensively in the code.
Any idea what it does and whether/how I could try to remove this @effigies ?

[effigies]

The code is used for generating provenance records from nipype workflow graphs.