Unable to type backslash into the interactive terminal on windows

# Bug report

### Bug description:

Hello,
as described in the title its exactly just this: Its not possible to type a backslash ("\") into the interactive terminal.
I could confirm the issue with windows 10 and 11 CPython 3.13.3. Other releases are not affected.

### CPython versions tested on:

3.13

### Operating systems tested on:

Windows