Revert "appveyor: update ansible to 2.8.1/2.7.11/2.6.17"
Revert "appveyor: update ansible to 2.8.1/2.7.11/2.6.17"

This reverts commit a65b57011637374a98239e6d0ddbc3d151d035e8.

juju4/ansible-loki,juju4/ansible-loki