Update nested pin (#629)

Author: delucchi-cmu

pyproject.toml

@@ -24,7 +24,7 @@ dependencies = [
     "fsspec>=2023.10.0", # Used for abstract filesystems
     "jproperties>=2.0.0",
     "mocpy>=0.19.0",
-    "nested-pandas>=0.6.6",
+    "nested-pandas>=0.6.7,<0.7.0",
     "numba>=0.58",
     "numpy>=2.3,<3", 
     "pandas>=2.0",