Update KeyVersion

Author: pavel-alay

itext/itext.kernel/Properties/AssemblyInfo.cs

@@ -22,7 +22,7 @@
 
 [assembly: Guid("be4c62cc-6495-47e1-ab00-05b1bfe331f6")]
 
-[assembly: KeyVersion("2.0.4.0")]
+[assembly: KeyVersion("3.0.0.0")]
 
 [assembly: AssemblyVersion("7.1.0.0")]
 [assembly: AssemblyFileVersion("7.1.0.0")]