revert test changes

Author: inforithmics

tests/SQLite.Tests/SQLite.Tests.csproj

@@ -2,14 +2,16 @@
 
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
+
     <IsPackable>false</IsPackable>
+    
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="AltCover" Version="8.7.3" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
   </ItemGroup>
 
   <ItemGroup>