Update to new fsspec-xrootd

[alexander-held]

The latest fsspec-xrootd release v0.3.0 brings some updates (I think especially scikit-hep/fsspec-xrootd#54) that might be quite relevant for IDAP testing so I'd propose to update AB-dev.

[matthewfeickert]

Resolved by PR #42.

(Closing manually again as linking isn't working. :?)

[matthewfeickert]

On AB-dev:

[bash][feickert]:~ > python -m pip show fsspec-xrootd
Name: fsspec_xrootd
Version: 0.3.0
Summary: xrootd implementation for fsspec
Home-page: https://github.com/CoffeaTeam/fsspec-xrootd
Author: Scott Demarest
Author-email: rockets1194@gmail.com
License: BSD-3-Clause
Location: /venv/lib/python3.9/site-packages
Requires: fsspec
Required-by: coffea
[bash][feickert]:~ >