Drop zstd for freethreaded

Author: effigies

tox.ini

@@ -86,14 +86,13 @@ extras =
 
   # Matplotlib has wheels for everything except win32 (x86)
   {full,pre}-{x,arm}64: viewers
-  {full,pre}-{x,arm}64: zstd
+  # No free-threaded wheels for: zstd
+  py3{9,10,11,12,13,14}-{full,pre}-{x,arm}64: zstd
 
-  # No 3.14 wheels for : scipy
-  # When released, remove the py3* line and add full to the pre line
   {full,pre}-{x,arm}64: spm
 
   # No free-threaded wheels for: h5py
-  py3{9,10,11,12,13}-{pre}-{x,arm}64: minc2
+  py3{9,10,11,12,13}-{full,pre}-{x,arm}64: minc2
   py314-pre-{x,arm}64: minc2
 
   # win32 (x86) wheels still exist for scipy+py39