fix strong-naming key filename

Author: eli-darkly

src/LaunchDarkly.ServerSdk.Redis.StrongName/LaunchDarkly.ServerSdk.Redis.StrongName.csproj

@@ -24,7 +24,7 @@
 
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <SignAssembly>true</SignAssembly>
-    <AssemblyOriginatorKeyFile>../../LaunchDarkly.ServerSdk.Redis.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>../../LaunchDarkly.Redis.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|netstandard2.0|AnyCPU'">