Improved tests - test using committed dll files - #129

Found version-specific or distribution-specific runtime identifier(s): debian-x64, fedora-x64, opensuse-x64, rhel-x64, win7-arm, win7-x64, win7-x86. Affected libraries: Libuv. In .NET 8.0 and higher, assets for version-specific and distribution-specific runtime identifiers will not be found by default. See https://aka.ms/dotnet/rid-usage for details.