Remove fsspec from pin for now (could constraint to 2023.5.0)

huggingface is pulled in for some jobs, which in turns pulls in
fsspec but with a higher version constraint of 2023.5.0.
So while the old fsspec is probably fine as a direct dependency
we cannot (generally) enforce it in all tests.

Signed-off-by: Sebastian Berg <sebastianb@nvidia.com>

dependencies.yaml

@@ -689,7 +689,6 @@ dependencies:
               - numba==0.57.*
               - numpy==1.23.*
               - pandas==2.0.*
-              - fsspec==0.6.0
               - pyarrow==16.1.0
               - cupy==12.0.0  # ignored as pip constraint
           - matrix: