Request to update the minetest package

Hi :)

Sorry if it's not the right place for that.

Version 5.7.0 came out, it should not have anything tricky for 
packaging. According to changes needed for the Arch Linux package at 
least: 
https://github.com/archlinux/svntogit-community/commit/99833df9b3cfa4bfc571f83a957ab8b98d1b680a
I hope that's a relevant hint for the Debian package.

Here are the announcement and changelog if needed:
https://blog.minetest.net/2023/04/08/5.7.0-released/
https://dev.minetest.net/Changelog#5.6.0_.E2.86.92_5.7.0

Cheers,