C#: Bump DBDefsLib version

Author: Marlamin

code/C#/DBDefsLib/DBDefsLib.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFrameworks>netstandard2.1;net8.0</TargetFrameworks>
     <LangVersion>latest</LangVersion>
-    <Version>1.0.1.2-beta</Version>
+    <Version>1.0.1.2-beta2</Version>
     <IsPackable>true</IsPackable>
   </PropertyGroup>
   <ItemGroup>