Bump Microsoft.Extensions.Configuration from 8.0.0 to 9.0.0 (#45)

Bumps [Microsoft.Extensions.Configuration](https://github.com/dotnet/runtime) from 8.0.0 to 9.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.0...v9.0.0)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Configuration
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Contacts.Tests/Contacts.Tests.csproj

@@ -10,7 +10,7 @@
     <PackageReference Include="FluentValidation" Version="11.11.0" />
     <PackageReference Include="MediatR" Version="12.4.1" />
     <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.45.2" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.1" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.0" />