For WebAssembly selenium tests we need a newer
version of Python (>3.7), so install 3.11 instead
of default 3.6.
Selenium and Netifaces pip packages are also required.
Change-Id: I9e3b317b359e8775d90bd143ff9692fc2a90cf42
Reviewed-by: Dominik Holland <dominik.holland@qt.io>