Bump Microsoft.EntityFrameworkCore.SqlServer from 5.0.12 to 6.0.3

Bumps [Microsoft.EntityFrameworkCore.SqlServer](https://github.com/dotnet/efcore) from 5.0.12 to 6.0.3.
- [Release notes](https://github.com/dotnet/efcore/releases)
- [Commits](dotnet/efcore@v5.0.12...v6.0.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/ChangeDB.Agent.SqlServer/ChangeDB.Agent.SqlServer.csproj

@@ -3,7 +3,7 @@
 
 
     <ItemGroup>
-      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.12" />
+      <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.3" />
     </ItemGroup>
 
     <ItemGroup>