Bump SSH.NET from 2016.1.0 to 2020.0.2 in /src/Core.Plugins.FileHandling#1

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dependabot/nuget/src/Core.Plugins.FileHandling/SSH.NET-2020.0.2relay-dev/core-plugins:dependabot/nuget/src/Core.Plugins.FileHandling/SSH.NET-2020.0.2Copy head branch name to clipboard