ensure the latest version of pip is installed for this job to avoid the
following error:
```
ValueError: ('Expected version spec in', 'ansible~=2.7,<2.8', 'at', '~=2.7,<2.8')
```
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
# force virtualenv to be created earlier for this occurence, so we are not stuck because of ansible-lint dependencie,
# which would enforce latest ansible version to be installed.
virtualenv $TEMPVENV
+"$VENV"/pip install --upgrade pip
"$VENV"/pip install -r <(grep ansible "$WORKSPACE"/ceph-ansible/tests/requirements.txt)
install_python_packages "pkgs[@]"