Bump Azure.Identity and System.Text.Json in /src/webapp01

Bumps [Azure.Identity](https://github.com/Azure/azure-sdk-for-net) and [System.Text.Json](https://github.com/dotnet/runtime). These dependencies needed to be updated together.

Updates `Azure.Identity` from 1.10.4 to 1.13.2
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](Azure/azure-sdk-for-net@Azure.Identity_1.10.4...Azure.Identity_1.13.2)

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: Azure.Identity
  dependency-type: direct:production
  update-type: version-update:semver-minor
- 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

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Azure.Identity" Version="1.10.4" />
+    <PackageReference Include="Azure.Identity" Version="1.13.2" />
     <PackageReference Include="Microsoft.Data.SqlClient" Version="5.1.3" />
     <PackageReference Include="System.Text.Json" Version="9.0.4" />
   </ItemGroup>