Bump Microsoft.Data.SqlClient from 5.2.2 to 6.0.0 in /src

Bumps [Microsoft.Data.SqlClient](https://github.com/dotnet/sqlclient) from 5.2.2 to 6.0.0.
- [Release notes](https://github.com/dotnet/sqlclient/releases)
- [Changelog](https://github.com/dotnet/SqlClient/blob/main/CHANGELOG.md)
- [Commits](https://github.com/dotnet/sqlclient/commits)

---
updated-dependencies:
- dependency-name: Microsoft.Data.SqlClient
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

src/Directory.Packages.props

@@ -14,7 +14,7 @@
     <PackageVersion Include="MarkdownSnippets.MsBuild" Version="27.0.2" />
     <PackageVersion Include="Microsoft.AspNetCore.Http" Version="2.3.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.1" />
-    <PackageVersion Include="Microsoft.Data.SqlClient" Version="5.2.2" />
+    <PackageVersion Include="Microsoft.Data.SqlClient" Version="6.0.0" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore" Version="9.0.0" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />