* Switch primary_interpreter from python38 to python310
* Avoid bashism in %()
* fix flavor executable substitution
* Keep python38 as primary python3
* Add python310 to the buildset
* Move python39 to the primary place in %pythons
* Disable python36 flavor in Factory buildset
* Add python310 flavor macros to compile set
* no newline after python_install_alternative
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python-rpm-macros?expand=0&rev=156
