docs: fix wrong indentation causing rendering error in dis page (python#104661)

Author: SigureMo

Doc/library/dis.rst

@@ -622,8 +622,8 @@ not have to be) the original ``STACK[-2]``.
 
    .. versionadded:: 3.8
 
-    .. versionchanged:: 3.11
-       Exception representation on the stack now consist of one, not three, items.
+   .. versionchanged:: 3.11
+      Exception representation on the stack now consist of one, not three, items.
 
 
 .. opcode:: CLEANUP_THROW