Is your feature request related to a problem? Please describe.
Old version of msrest is used in botframework components -> https://github.com/microsoft/botbuilder-python/search?q=msrest%3D%3D0.6.10 . This blocks us to use latest versions of the service bus client or event using the new language studio python libraries.

With msrest=0.6.10, we're blocked to using 0.50 service bus package and other packages like event grid.

Describe the solution you'd like
EDITED: Upgrade msrest to the at least 0.6.19 or higher.

Describe alternatives you've considered
No alternatives.