Per T257755#6863029 all bools should be converted to numbers

Bools are also not working with the abstract database layer, there are converts to integer in Database::addQuotes

The DatabaseIntegrationTest should be used to avoid new tables with bool type in mediawiki/core.
(After the tests gets a structure test with T297211 it also applies to extension, which may need a clean up before. But that also needed for other parts of that structure test.)