Update the `vector` deprecation warning

[ikrommyd]

Currently importing coffea things gives

/home/iason/Dropbox/work/coffea_dev/coffea/src/coffea/nanoevents/schemas/fcc.py:5: FutureWarning: In version 2025.1.0 (target date: 2024-12-31 11:59:59-06:00), this will be an error.
To raise these warnings as errors (and get stack traces to find out where they're called), run
    import warnings
    warnings.filterwarnings("error", module="coffea.*")
after the first `import coffea` or use `@pytest.mark.filterwarnings("error:::coffea.*")` in pytest.
Issue: coffea.nanoevents.methods.vector will be removed and replaced with scikit-hep vector. Nanoevents schemas internal to coffea will be migrated. Otherwise please consider using that package!.
  from coffea.nanoevents.methods import vector

2025.1.0 has passed so this deprecation warning should be updated to future date (or removed completely).