[Snyk] Security upgrade MimeKit from 2.11.0 to 4.15.1#161

ashmuck wants to merge 2 commits intomasterIndicoDataSolutions/indico-client-csharp:masterfrom

snyk-fix-5d72ac07beceb7cfede8097484bd77a7IndicoDataSolutions/indico-client-csharp:snyk-fix-5d72ac07beceb7cfede8097484bd77a7Copy head branch name to clipboard