Below are the changes from previous cycle:
* Remove the additional ubuntu version 20.04 from
testing which was added in 2023.1 testing runtime
because we bumped the testing version from 20.04 to 22.04
in the 2023.1 cycle. From 2023.1 to 2023.2, there is no
major version change in testing so we do not need to do
any additional version testing.
* Add Rocky Linux 9 in Best Effort testing
* With that bumping the python minversion to py3.9 which is
Debian 11 default.
Change-Id: I603c69be0be43770c4b2bf9ebf125adea7bb7ab3
6ecb9c7210