ristretto: update to 0.13.1

Change log:

0.13.1 (2023-05-13)
======
- I18n: Update po/LINGUAS list
- I18n: Update po/LINGUAS list
- Force g_file_query_info if magic_file returns
"application/octet-stream"
- build: Use m4_defined min versions and cleanup
- Replace XDT_CHECK_LIBX11 and guard x11 code paths
- build: Use XDT_VERSION_INIT and get rid of configure.ac.in
- build: Switch from intltool to gettext
- viewer: Paint background icon at window scale
- Translation Updates:
  Albanian, Arabic, Armenian (Armenia), Basque, Belarusian, Bulgarian,
  Catalan, Chinese (China), Chinese (Taiwan), Croatian, Czech, Danish,
  Dutch, Eastern Armenian, English (Australia), English (United
  Kingdom), Estonian, Finnish, French, Galician, German, Greek, Hebrew,
  Hungarian, Icelandic, Indonesian, Interlingue, Italian, Japanese,
  Kazakh, Korean, Lithuanian, Malay, Norwegian Bokm奪l, Occitan (post
  1500), Polish, Portuguese, Portuguese (Brazil), Romanian, Russian,
  Serbian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish,
  Ukrainian, Uyghur

(gutteridge)