Release v0.4.4 with upgraded scala-parser-combinators dependency

[jdrphillips]

For scala 2.13, akka has frozen the ssl-config-core dependency version to 0.4.3. This includes a transitive dependency of scala-parser-combinators 1.1.2 which is incompatible with the modern version, 2.1.1, now present in an increasing number of other dependencies (IE, slick ecosystem).

Akka will not upgrade its ssl-config-core version to 0.6+ (akka/akka#31252)

I am hoping a one-shot release of ssl-config 0.4.4 with an updated scala-parser-combinators library will help resolve the issues we're seeing in the wider ecosystem, if akka is willing to upgrade to it for their next release.

I have tried it locally and all ssl-config tests pass on v0.4.3 with the upgraded combinator library.

[jdrphillips]

Related issues:

tminglei/slick-pg#586
akka/akka#31485
akka/akka#31252