Bump Microsoft.AspNetCore.TestHost from 8.0.19 to 8.0.20#75

dependabot[bot] merged 1 commit intomainopen-policy-agent/opa-aspnetcore:mainfrom

dependabot/nuget/test/OpenPolicyAgent.Opa.AspNetCore.Tests/Microsoft.AspNetCore.TestHost-8.0.20open-policy-agent/opa-aspnetcore:dependabot/nuget/test/OpenPolicyAgent.Opa.AspNetCore.Tests/Microsoft.AspNetCore.TestHost-8.0.20Copy head branch name to clipboard