feat: upgrade log4net

Author: ProgrammingByPermutation

src/Nullinside.Api.Common/Nullinside.Api.Common.csproj

@@ -17,7 +17,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="log4net" Version="2.0.17" />
+        <PackageReference Include="log4net" Version="3.0.4" />
         <PackageReference Include="Microsoft.Extensions.Logging" Version="9.0.4" />
         <PackageReference Include="Newtonsoft.Json" Version="13.0.3"/>
         <PackageReference Include="SSH.NET" Version="2025.0.0" />