Revert Vert.x to 4.4 in Hibernate Reactive 2.0

[DavideD]

it wasn't wise to upgrade to Vert.x 4.5 in a micro

[gavinking]

This issue was opened a year ago. Doesn't seem like it should still be open. If it wasn't done already, it's surely too late to do it now.

[DavideD]

We've done this but I forgot to close the issue.
Thanks