Prepare for 4.2.0

Author: oschwald

MaxMind.Db/MaxMind.Db.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>.NET reader for the MaxMind DB file format</Description>
-    <VersionPrefix>4.1.0</VersionPrefix>
+    <VersionPrefix>4.2.0</VersionPrefix>
     <TargetFrameworks>net9.0;net8.0;netstandard2.1;netstandard2.0</TargetFrameworks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <AssemblyName>MaxMind.Db</AssemblyName>