Bump Microsoft.Extensions.Configuration from 3.1.8 to 5.0.0 in /src

Bumps [Microsoft.Extensions.Configuration](https://github.com/dotnet/runtime) from 3.1.8 to 5.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

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

src/aggregator-shared/aggregator-shared.csproj

@@ -30,7 +30,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.ApplicationInsights" Version="2.14.0" />
     <PackageReference Include="Microsoft.Azure.Management.Fluent" Version="1.34.0" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="3.1.8" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="5.0.0" />
     <PackageReference Include="Microsoft.TeamFoundationServer.Client" Version="16.153.0" />
     <PackageReference Include="Microsoft.VisualStudio.Services.ServiceHooks.WebApi" Version="16.153.0" />
   </ItemGroup>