Bump Microsoft.Extensions.Configuration.Xml from 3.0.1 to 3.1.0 (#113)

Bumps [Microsoft.Extensions.Configuration.Xml](https://github.com/aspnet/Extensions) from 3.0.1 to 3.1.0.
- [Release notes](https://github.com/aspnet/Extensions/releases)
- [Commits](dotnet/extensions@v3.0.1...v3.1.0)

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

src/Lighthouse/Lighthouse.csproj

@@ -7,7 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Akka.Cluster" Version="$(AkkaVersion)" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="3.1.0" />
-    <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="3.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Xml" Version="3.1.0" />
     <PackageReference Include="Petabridge.Cmd.Cluster" Version="$(PbmVersion)" />
     <PackageReference Include="Petabridge.Cmd.Remote" Version="$(PbmVersion)" />
     <PackageReference Include="Akka.Bootstrap.Docker">