`sqlite3` help message shows wrong EOF key on Windows

[kemingy]

Bug report

Bug description:

# enter the interactive sqlite3 console
python -m sqlite3
# print the help message
>> .help

• expect on Windows

Enter SQL code or one of the below commands, and press enter.

.version    Print underlying SQLite library version
.help       Print this help message
.quit       Exit the CLI, equivalent to CTRL-Z

• what we get now

Enter SQL code or one of the below commands, and press enter.

.version    Print underlying SQLite library version
.help       Print this help message
.quit       Exit the CLI, equivalent to CTRL-D

This issue is actually found by @yihong0618

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Linked PRs

• gh-139105: Fix the EOF key shows on Windows for sqlite3 .help #139106