Fix WebHook controller

Works great! Moving to major priority because automating updates is majorly important.

Can we have an update of this issue ?

I have generated a patch from yannickoo's MR and module now works well.

@julien_g I would reach out to your Phrase account manager and encourage them to engage with the issue queue. Maybe link to this:

https://www.drupal.org/docs/develop/issues/issue-procedures-and-etiquett... →

As far as I can tell, they haven't taken a look here in several years. "filip.rachunek" is listed as the maintainer, but if you clone the repo locally and look at committers by name instead of email, his last commit was in 2017. I think they just use his account to push code.