Fix wrong version of basis assembly

Author: alex-kulakov

Extensions/Xtensive.Orm.Localization.Tests/Xtensive.Orm.Localization.Tests.csproj

@@ -10,11 +10,6 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="6.0.0" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='net5.0'">
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="5.0.0" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='net6.0'">
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
   </ItemGroup>
   <ItemGroup>

Extensions/Xtensive.Orm.Reprocessing.Tests/Xtensive.Orm.Reprocessing.Tests.csproj

@@ -10,11 +10,6 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="6.0.0" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='net5.0'">
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="5.0.0" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='net6.0'">
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
   </ItemGroup>
   <ItemGroup>

Extensions/Xtensive.Orm.Security.Tests/Xtensive.Orm.Security.Tests.csproj

@@ -10,11 +10,6 @@
     <PackageReference Include="NUnit3TestAdapter" Version="4.2.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="6.0.0" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='net5.0'">
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="5.0.0" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)'=='net6.0'">
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
   </ItemGroup>
   <ItemGroup>