Update git submodules
- Update scripts/i18n from branch 'master' to 1a5bdf53220a90583cf5714dceb323e6621308f8
- [bugfix] Move "isbn-formatting" messages to "pywikibot-fixes-isbn"
Bug: T306166 Change-Id: Id5140eccb206dcca6f7fcf14d73dacfaa6c6177b
- [bugfix] Move "isbn-formatting" messages to "pywikibot-fixes-isbn"