jobs/swh-environment: Bump Python to 3.10
That job started experiencing issues as Python 3.7 reached EOL so use a more recent Python version (3.10 as in elastic infra) to run the whole SWH tests suite.
That job started experiencing issues as Python 3.7 reached EOL so use a more recent Python version (3.10 as in elastic infra) to run the whole SWH tests suite.