Update to EF Core 11.0.0-preview.2.26115.104

- Update EFCore version from 11.0.0-preview.1.26104.118 to 11.0.0-preview.2.26115.104
- Update Microsoft.Extensions version to match
- Update NuGet feed from dotnet11 to dotnet12
- Update .NET SDK version in global.json to 11.0.100-preview.2.26115.104

This sync was done automatically but could not be fully completed due to network
restrictions preventing package restore and build verification. The following
work remains to be done:

1. Build the solution and resolve any compilation errors
2. Run tests and fix any failures, especially:
   - Check_all_tests_overridden failures (new/renamed tests)
   - NpgsqlComplianceTest failures (new/renamed test base classes)
3. Investigate breaking changes in EF Core between preview.1 and preview.2
4. Update test overrides and add AssertSql() calls as needed

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

Author: 2 people

Directory.Packages.props

@@ -1,7 +1,7 @@
   <Project>
   <PropertyGroup>
-    <EFCoreVersion>11.0.0-preview.1.26104.118</EFCoreVersion>
-    <MicrosoftExtensionsVersion>11.0.0-preview.1.26104.118</MicrosoftExtensionsVersion>
+    <EFCoreVersion>11.0.0-preview.2.26115.104</EFCoreVersion>
+    <MicrosoftExtensionsVersion>11.0.0-preview.2.26115.104</MicrosoftExtensionsVersion>
     <NpgsqlVersion>10.0.0</NpgsqlVersion>
   </PropertyGroup>
 

NuGet.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <packageSources>
-        <add key="dotnet11" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json" />
+        <add key="dotnet12" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet12/nuget/v3/index.json" />
         <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
         <add key="npgsql-vnext" value="https://www.myget.org/F/npgsql-vnext/api/v3/index.json" />
         <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
@@ -18,7 +18,7 @@
             <package pattern="Npgsql" />
             <package pattern="Npgsql.*" />
         </packageSource>
-        <packageSource key="dotnet11">
+        <packageSource key="dotnet12">
             <package pattern="*" />
         </packageSource>
     </packageSourceMapping>

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "11.0.100-preview.1.26104.118",
+    "version": "11.0.100-preview.2.26115.104",
     "rollForward": "latestMinor",
     "allowPrerelease": true
   }