[INTEGRATION] Limit Python version to max 3.9 for robotframework-onap

It's related with testing framework (nosetest) which is not compatibile with Python 3.10

Issue-ID: INT-1977
Signed-off-by: Michal Jagiello <michal.jagiello@t-mobile.pl>
Change-Id: I2232dcbae7f5149d5e31ce5aecac9a98a3e7871f
1 file changed