pin fiddle to 0.2.5

paxml/pip_package/requirements.txt

@@ -116,7 +116,7 @@ executing==1.2.0
     # via stack-data
 fastjsonschema==2.16.2
     # via nbformat
-fiddle==0.2.4
+fiddle==0.2.5
     # via -r praxis-requirements.in
 filelock==3.8.0
     # via