Bump AkkaVersion from 1.5.4 to 1.5.7 (#317)

Bumps `AkkaVersion` from 1.5.4 to 1.5.7.

Updates `Akka.Persistence.Sql.Common` from 1.5.4 to 1.5.7
- [Release notes](https://github.com/akkadotnet/Akka.Hosting/releases)
- [Changelog](https://github.com/akkadotnet/Akka.Hosting/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/Akka.Hosting/compare/1.5.4...1.5.7)

Updates `Akka.Persistence.Sql.TestKit` from 1.5.4 to 1.5.7
- [Release notes](https://github.com/akkadotnet/Akka.Hosting/releases)
- [Changelog](https://github.com/akkadotnet/Akka.Hosting/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/Akka.Hosting/compare/1.5.4...1.5.7)

Updates `Akka.Persistence.Query.Sql` from 1.5.4 to 1.5.7
- [Release notes](https://github.com/akkadotnet/Akka.Hosting/releases)
- [Changelog](https://github.com/akkadotnet/Akka.Hosting/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/Akka.Hosting/compare/1.5.4...1.5.7)

Updates `Akka.Persistence.Hosting` from 1.5.4 to 1.5.7
- [Release notes](https://github.com/akkadotnet/Akka.Hosting/releases)
- [Changelog](https://github.com/akkadotnet/Akka.Hosting/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/Akka.Hosting/compare/1.5.4...1.5.7)

Updates `Akka.Hosting` from 1.5.4 to 1.5.7
- [Release notes](https://github.com/akkadotnet/Akka.Hosting/releases)
- [Changelog](https://github.com/akkadotnet/Akka.Hosting/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/Akka.Hosting/compare/1.5.4...1.5.7)

Updates `Akka.TestKit.Xunit2` from 1.5.4 to 1.5.7
- [Release notes](https://github.com/akkadotnet/Akka.Hosting/releases)
- [Changelog](https://github.com/akkadotnet/Akka.Hosting/blob/dev/RELEASE_NOTES.md)
- [Commits](https://github.com/akkadotnet/Akka.Hosting/compare/1.5.4...1.5.7)

---
updated-dependencies:
- dependency-name: Akka.Persistence.Sql.Common
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Akka.Persistence.Sql.TestKit
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Akka.Persistence.Query.Sql
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Akka.Persistence.Hosting
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Akka.Hosting
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Akka.TestKit.Xunit2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Directory.Build.props

@@ -12,7 +12,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <XunitVersion>2.4.2</XunitVersion>
-    <AkkaVersion>1.5.4</AkkaVersion>
+    <AkkaVersion>1.5.7</AkkaVersion>
     <TestSdkVersion>17.4.1</TestSdkVersion>
     <NetCoreTestVersion>net6.0</NetCoreTestVersion>
     <NetFrameworkTestVersion>net48</NetFrameworkTestVersion>