Bump Akka.Cluster.TestKit to 1.5.24 (#246)

Author: Arkatufus

src/Directory.Packages.props

@@ -5,7 +5,7 @@
   </PropertyGroup>
   <!-- App dependencies -->
   <ItemGroup>
-    <PackageVersion Include="Akka.Cluster.TestKit" Version="1.5.23" />
+    <PackageVersion Include="Akka.Cluster.TestKit" Version="1.5.24" />
     <PackageVersion Include="TeamCity.ServiceMessages" Version="4.1.1" />
     <PackageVersion Include="System.CodeDom" Version="8.0.0" />
     <PackageVersion Include="System.Runtime.Loader" Version="4.3.0" />