[SDK updates] update beta calling version to 1.19.1-beta.2#3732

dmceachernmsft merged 3 commits intomainAzure/communication-ui-library:mainfrom

dmceachernmsft/calling-1.19.1-beta.2Azure/communication-ui-library:dmceachernmsft/calling-1.19.1-beta.2Copy head branch name to clipboard