Add upper limit to fsspec due to regression in 2026.2.0

Author: BrianMichell

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
     "click>=8.3.0",
     "click-params>=0.5.0",
     "dask>=2025.9.1",
-    "fsspec>=2025.9.0",
+    "fsspec>=2025.9.0,<2026.2.0",
     "pint>=0.25.0",
     "psutil>=7.1.0",
     "pydantic>=2.12.0",