Update dotnet monorepo to v5.0.10

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
Microsoft.AspNetCore.AzureAppServicesIntegration (source)	nuget	patch	5.0.9 -> 5.0.10
Microsoft.AspNetCore.Mvc.NewtonsoftJson (source)	nuget	patch	5.0.9 -> 5.0.10
Microsoft.AspNetCore.Mvc.Testing (source)	nuget	patch	5.0.9 -> 5.0.10
Microsoft.AspNetCore.TestHost (source)	nuget	patch	5.0.9 -> 5.0.10

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