Python: Bump package versions for 1.20.0 release - #8968

Python: Bump package versions for 1.20.0 release#8968

Eduard van Valkenburg (eavanvalkenburg) merged 8 commits into

microsoft:mainmicrosoft/agent-framework:mainfrom

eavanvalkenburg:python-package-release-planeavanvalkenburg/agent-framework:python-package-release-planCopy head branch name to clipboard