port: Add functional test pipeline for Facebook secondary test bot (#5949)

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The changes in Add functional test pipeline for Facebook secondary test bot (#5949) may need to be ported to maintain parity with microsoft/botbuilder-dotnet.

Fixes #minor

Description

Adding a pipeline for running Facebook functional tests against the secondary test bot has been useful to help debug functional test failures against the Facebook primary test bot.

Specific Changes

Change the test to look for a reply from either test bot. Add the .yml for pipeline Botbuilder-DotNet-Facebook-Secondary-Functional-Tests-yaml.

Please review and, if necessary, port the changes.