Roll back parsl to 2024 version so book builds.

mbjones · mbjones · commit 307072a9e95f · 2025-04-14T16:50:48.000-08:00
diff --git a/requirements.txt b/requirements.txt
@@ -15,7 +15,7 @@ numpy
 netCDF4
 nc-time-axis 
 pandas
-parsl
+parsl==2024.3.25
 gcsfs
 glances
 pyarrow
