Drop pypy3 again

Author: filmor

.github/workflows/ci.yml

@@ -74,7 +74,7 @@ jobs:
             instance: macos-15
             suffix:   -macos-aarch64-none
 
-        python: ['3.14', '3.13', '3.12', '3.11', '3.10', 'pypy3']
+        python: ['3.14', '3.13', '3.12', '3.11', '3.10']
 
         exclude:
           # Broken ctypes find_library