Bump Microsoft.Azure.Cosmos and System.Text.Json (#2901)

Bumps [Microsoft.Azure.Cosmos](https://github.com/Azure/azure-cosmos-dotnet-v3) and [System.Text.Json](https://github.com/dotnet/runtime). These dependencies needed to be updated together.

Updates `Microsoft.Azure.Cosmos` from 3.45.1 to 3.45.2
- [Release notes](https://github.com/Azure/azure-cosmos-dotnet-v3/releases)
- [Changelog](https://github.com/Azure/azure-cosmos-dotnet-v3/blob/master/changelog.md)
- [Commits](https://github.com/Azure/azure-cosmos-dotnet-v3/commits)

Updates `System.Text.Json` from 9.0.0 to 6.0.10
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.0...v6.0.10)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Directory.Packages.props

@@ -31,7 +31,7 @@
     <PackageVersion Include="Microsoft.AspNetCore.AzureAppServices.HostingStartup" Version="9.0.0" />
     <PackageVersion Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.0" />
     <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="9.0.0" />
-    <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.45.1" />
+    <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.45.2" />
     <PackageVersion Include="Microsoft.DotNet.XliffTasks" Version="9.0.0-beta.24414.3" />
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="9.0.0" />
     <PackageVersion Include="Microsoft.IdentityModel.JsonWebTokens" Version="8.2.0" />