1.2.4 changed transliteration behaviour

[tomjn]

Upgrading from 1.2.3 to 1.2.4 broke our test suite, in particular some characters are transliterated differently, breaking assertions and semver.

E.g. we test that това е текст на бълрагски за тест becomes tova-e-tekst-na-blragski-za-test which is true in 1.2.3 and false in 1.2.4.

In 1.2.4 it instead transliterates to tova-e-tekst-na-bielragski-za-test.

urlify version	in	out
1.2.3	бълрагски	blragski
1.2.4	бълрагски	bielragski

I'm sure the dependency has its reasons for doing this, but composer pulled in 1.2.4 automatically and broke out test suites, this should have been a 1.3.0 or a 2.0.0 release.

[lux]

That was my bad on not bumping the version with this update. Apologies for breaking your tests without proper warning!

[tomjn]

No worries, it was only 2 tests at the time, but it does mean we'll need to pin to 1.2.3 and do extra testing in case redirects cause issues