Add Mono download to linux test env#263

eranturgeman merged 16 commits intojfrog:devjfrog/jfrog-cli-security:devfrom

eranturgeman:download-mono-to-fix-nuget-tests-in-linuxeranturgeman/jfrog-cli-security:download-mono-to-fix-nuget-tests-in-linuxCopy head branch name to clipboard