Bump Microsoft.EntityFrameworkCore and Microsoft.EntityFrameworkCore.SqlServer

Bumps [Microsoft.EntityFrameworkCore](https://github.com/dotnet/efcore) and [Microsoft.EntityFrameworkCore.SqlServer](https://github.com/dotnet/efcore). These dependencies needed to be updated together.

Updates `Microsoft.EntityFrameworkCore` from 7.0.20 to 7.0.0
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v7.0.20...v7.0.0)

Updates `Microsoft.EntityFrameworkCore.SqlServer` from 6.0.0 to 7.0.0
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v6.0.0...v7.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.EntityFrameworkCore
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Microsoft.EntityFrameworkCore.SqlServer
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

LearningHub.Nhs.UserApi.Repository/LearningHub.Nhs.UserApi.Repository.csproj

@@ -11,7 +11,7 @@
     <PackageReference Include="elfhHub.Nhs.Models" Version="3.0.8" />
     <PackageReference Include="LearningHub.Nhs.Models" Version="3.0.33" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.20" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>