Merge remote-tracking branch 'origin/main' into animation-update

Author: JoelLucaAdams

pyproject.toml

@@ -3,7 +3,7 @@ requires = [
   "scikit-build-core>=0.3",
   "setuptools_scm",
   "numpy>=2.0.0",
-  "cython>=3.0",
+  "cython==3.0.*",
 ]
 build-backend = "scikit_build_core.build"
 
@@ -22,7 +22,6 @@ dependencies = [
   "numpy>=2.0.0",
   "xarray>=2024.1.0",
   "dask>=2024.7.1",
-  "cython>=3.0",
 ]
 description = "Provides a backend for xarray to read SDF files as created by the EPOCH plasma PIC code."
 classifiers = [