tests: uninstall ansible prior to install 6.0 req

in order to avoid conflict with previous version installed

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>

tox-subset_update.ini

@@ -54,6 +54,7 @@ commands=
       ceph_docker_registry_password={env:DOCKER_HUB_PASSWORD} \
   "'
 
+  pip uninstall -y ansible
   pip install -r {toxinidir}/tests/requirements.txt
 # upgrade mons
 # mon1

tox-update.ini

@@ -61,6 +61,7 @@ commands=
       ceph_nfs_rgw_access_key=fake_access_key \
       ceph_nfs_rgw_secret_key=fake_secret_key \
   "'
+  pip uninstall -y ansible
   pip install -r {toxinidir}/tests/requirements.txt
   ansible-playbook -vv -i {changedir}/{env:INVENTORY} {toxinidir}/infrastructure-playbooks/rolling_update.yml --extra-vars "\
       ireallymeanit=yes \