Default to Npgsql 10.0.2, override to 8.0.7 only in PgVector

Set the latest Npgsql 10.0.2 as the default in Directory.Packages.props
so only PgVector.csproj needs a VersionOverride (for its older TFMs).
IntegrationTests and Concepts get 10.0.2 automatically.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: roji

dotnet/Directory.Packages.props

@@ -89,7 +89,7 @@
     <PackageVersion Include="ModelContextProtocol" Version="0.4.0-preview.3" />
     <PackageVersion Include="MSTest.TestFramework" Version="3.8.0" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
-    <PackageVersion Include="Npgsql" Version="8.0.7" />
+    <PackageVersion Include="Npgsql" Version="10.0.2" />
     <PackageVersion Include="OData2Linq" Version="2.2.0" />
     <PackageVersion Include="OllamaSharp" Version="5.4.12" />
     <PackageVersion Include="OpenAI" Version="2.9.1" />

dotnet/samples/Concepts/Concepts.csproj

@@ -21,7 +21,7 @@
     <PackageReference Include="Microsoft.Bcl.Memory" />
     <PackageReference Include="Microsoft.ML.Tokenizers.Data.Cl100kBase" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
-    <PackageReference Include="Npgsql" VersionOverride="10.0.2" />
+    <PackageReference Include="Npgsql" />
     <PackageReference Include="OpenAI" />
     <PackageReference Include="xRetry" />
     <PackageReference Include="xunit" />

dotnet/src/IntegrationTests/IntegrationTests.csproj

@@ -43,7 +43,7 @@
     <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" />
     <PackageReference Include="Google.GenAI" />
-    <PackageReference Include="Npgsql" VersionOverride="10.0.2" />
+    <PackageReference Include="Npgsql" />
     <PackageReference Include="xRetry" />
     <PackageReference Include="xunit" />
     <PackageReference Include="xunit.runner.visualstudio">

dotnet/src/VectorData/PgVector/PgVector.csproj

@@ -32,8 +32,8 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" />
     <PackageReference Include="Microsoft.Extensions.AI.Abstractions" />
-    <PackageReference Include="Npgsql" VersionOverride="10.0.2" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))" />
-    <PackageReference Include="Npgsql" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))" />
+    <PackageReference Include="Npgsql" VersionOverride="8.0.7" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))" />
+    <PackageReference Include="Npgsql" Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))" />
     <PackageReference Include="Pgvector" />
   </ItemGroup>