chore: Apply whitespace fixes from hooks

- Remove trailing whitespace
- Correct single newline at end of files (skip for json)
- Update to formatting in a few places due to black

core/pe/modules/block.c

@@ -245,4 +245,4 @@ PyObject *PyInit__block(void) {
   PyModule_AddObject(m, "DifferentBlockCountError", DifferentBlockCountError);
 
   return m;
-}
+}