Bump AkkaVersion from 1.4.10 to 1.4.12 (#175)
Bump AkkaVersion from 1.4.10 to 1.4.12 (#175)

Bumps `AkkaVersion` from 1.4.10 to 1.4.12.

Updates `Akka.TestKit.XUnit2` from 1.4.10 to 1.4.12
- [Release notes](https://github.com/akkadotnet/akka.net/releases)
- [Changelog](https://github.com/akkadotnet/akka.net/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/akka.net/compare/1.4.10...1.4.12)

Updates `Akka.Cluster` from 1.4.10 to 1.4.12
- [Release notes](https://github.com/akkadotnet/akka.net/releases)
- [Changelog](https://github.com/akkadotnet/akka.net/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/akka.net/compare/1.4.10...1.4.12)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
petabridge/lighthouse,Aaronontheweb/lighthouse,petabridge/lighthouse,Aaronontheweb/lighthouse