Bump Microsoft.Data.SqlClient and System.Text.Json in /src/webapp01

Bumps [Microsoft.Data.SqlClient](https://github.com/dotnet/sqlclient) and [System.Text.Json](https://github.com/dotnet/runtime). These dependencies needed to be updated together.

Updates `Microsoft.Data.SqlClient` from 5.0.2 to 6.0.1
- [Release notes](https://github.com/dotnet/sqlclient/releases)
- [Changelog](https://github.com/dotnet/SqlClient/blob/main/CHANGELOG.md)
- [Commits](dotnet/SqlClient@v5.0.2...v6.0.1)

Updates `System.Text.Json` from 9.0.0 to 9.0.0
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.0...v9.0.0)

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

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

Author: dependabot[bot]

src/webapp01/webapp01.csproj

@@ -7,8 +7,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Data.SqlClient" Version="5.0.2" />
-    <PackageReference Include="System.Text.Json" Version="8.0.4" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.1" />
+    <PackageReference Include="System.Text.Json" Version="9.0.0" />
   </ItemGroup>
 
 </Project>