port akka-persistence-r2dbc changes from 1.0.0 and 1.0.1 releases

The releases are now Apache licensed (3 years after the full release). Pekko has the 0.7.7 changes already. * https://github.com/akka/akka-persistence-r2dbc/releases/tag/v1.0.0 * https://github.com/akka/akka-persistence-r2dbc/releases/tag/v1.0.1 akka-persistence-r2dbc 1.1.0 is still a few months from being available to port from