fix: restore EF8 feature parity for EF9 and EF10

- Restore DateOnly and TimeOnly support.
- Restore test coverage.

Author: yv989c

src/QueryableValues.SqlServer.EFCore10/QueryableValues.SqlServer.EFCore10.csproj

@@ -6,7 +6,7 @@
     <VersionPrefix>$(VersionEFCore10)</VersionPrefix>
     <TargetFramework>net10.0</TargetFramework>
     <Configurations>Debug;Release;Test</Configurations>
-    <DefineConstants>$(DefineConstants);EFCORE;EFCORE10</DefineConstants>
+    <DefineConstants>$(DefineConstants);EFCORE;EFCORE8;EFCORE10</DefineConstants>
   </PropertyGroup>
 
   <ItemGroup>

src/QueryableValues.SqlServer.EFCore9/QueryableValues.SqlServer.EFCore9.csproj

@@ -6,7 +6,7 @@
     <VersionPrefix>$(VersionEFCore9)</VersionPrefix>
     <TargetFramework>net8.0</TargetFramework>
     <Configurations>Debug;Release;Test</Configurations>
-    <DefineConstants>$(DefineConstants);EFCORE;EFCORE9</DefineConstants>
+    <DefineConstants>$(DefineConstants);EFCORE;EFCORE8;EFCORE9</DefineConstants>
   </PropertyGroup>
 
   <ItemGroup>

tests/QueryableValues.SqlServer.Tests.EFCore10/QueryableValues.SqlServer.Tests.EFCore10.csproj

@@ -4,7 +4,7 @@
 	<PropertyGroup>
 		<TargetFrameworks>net10.0</TargetFrameworks>
 		<AssemblyName>BlazarTech.QueryableValues.SqlServer.Tests.EFCore10</AssemblyName>
-		<DefineConstants>$(DefineConstants);TESTS;EFCORE10</DefineConstants>
+		<DefineConstants>$(DefineConstants);TESTS;EFCORE8;EFCORE10</DefineConstants>
 	</PropertyGroup>
 
 	<ItemGroup>

tests/QueryableValues.SqlServer.Tests.EFCore9/QueryableValues.SqlServer.Tests.EFCore9.csproj

@@ -4,7 +4,7 @@
 	<PropertyGroup>
 		<TargetFrameworks>net8.0</TargetFrameworks>
 		<AssemblyName>BlazarTech.QueryableValues.SqlServer.Tests.EFCore9</AssemblyName>
-		<DefineConstants>$(DefineConstants);TESTS;EFCORE9</DefineConstants>
+		<DefineConstants>$(DefineConstants);TESTS;EFCORE8;EFCORE9</DefineConstants>
 	</PropertyGroup>
 
 	<ItemGroup>