Fix bad format IID in VTableItem.WriteVTableMap

Author: Avasam

CHANGES.txt

@@ -14,6 +14,7 @@ https://mhammond.github.io/pywin32_installers.html .
 Coming in build 309, as yet unreleased
 --------------------------------------
 
+* Fix bad format when VTableItem.WriteVTableMap returns an object derived from IDispatch (#2481, @Avasam)
 * Removed param `hIcon` from `win32comext.shell.ShellExecuteEx`. It was unusable since Windows Vista (#2423, @Avasam)
 * Fixed `nbios.NCBStruct` packing (#2406, @Avasam)
 * Restored axdebug builds on Python 3.10 (#2416, @Avasam)

com/win32com/client/genpy.py

@@ -279,13 +279,7 @@ def WriteVTableMap(self, generator):
                 if item_num % 5 == 0:
                     print("\n\t\t\t", end=" ", file=stream)
                 defval = build.MakeDefaultArgRepr(arg)
-                if arg[3] is None:
-                    arg3_repr = None
-                else:
-                    arg3_repr = repr(arg[3])
-                print(
-                    repr((arg[0], arg[1], defval, arg3_repr)), ",", end=" ", file=stream
-                )
+                print(repr((arg[0], arg[1], defval, arg[3])), ",", end=" ", file=stream)
             print("],", end=" ", file=stream)
             print(repr(desc.funckind), ",", end=" ", file=stream)
             print(repr(desc.invkind), ",", end=" ", file=stream)