chore(deps): bump Microsoft.Extensions.Configuration

Bumps [Microsoft.Extensions.Configuration](https://github.com/dotnet/runtime) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v6.0.0...v7.0.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

src/Finbuckle.MultiTenant/Finbuckle.MultiTenant.csproj

@@ -29,7 +29,7 @@
                 <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
                 <PackageReference Include="Microsoft.Extensions.Options" Version="6.0.0" />
                 <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="6.0.0" />
-                <PackageReference Include="Microsoft.Extensions.Configuration" Version="6.0.0" />
+                <PackageReference Include="Microsoft.Extensions.Configuration" Version="7.0.0" />
                 <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
                 <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="6.0.0" />
             </ItemGroup>