Pin version of FINUFFT for now

Author: garrettwrong

setup.py

@@ -24,7 +24,7 @@ def read(fname):
     author_email="[email protected]",
     install_requires=[
         "click",
-        "finufft",
+        "finufft==2.0.0",
         "importlib_resources>=1.0.2",
         "joblib",
         "matplotlib",