Switch version to 1.2.8

src/SharedVersionInfo.cs

@@ -1,5 +1,5 @@
 using System.Reflection;
 
-[assembly: AssemblyVersion("1.2.7")]
-[assembly: AssemblyFileVersion("1.2.7")]
-[assembly: AssemblyInformationalVersion("1.2.7")]
+[assembly: AssemblyVersion("1.2.8")]
+[assembly: AssemblyFileVersion("1.2.8")]
+[assembly: AssemblyInformationalVersion("1.2.8")]