15.1 has reached EOL on 2021-02-02.

Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

We have multiple breakage report with Ansible 2.10+ in https://github.com/kubernetes-sigs/kubespray/issues/6762


README.md already recommended 2.9+

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* SHAs for 1.19.6, 1.18.14, 1.18.13, 1.17.16 and 1.17.15

* Fix etcd version in README

* Bump kube_version to 1.19.6

* Update hashes and set default version to 1.19.5

Signed-off-by: anthr76 <hello@anthonyrabbito.com>

* Reorder hashes

1.19.5 hashes should be near 1.19.x

* Added back blank line

* copying ssh key no longer required, works with password auth
* use copy module instead of synchronize (which requires sshpass)
* less tasks and always changed tasks

* bump crio version to 1.19

* crio package name has changed for debian/ubuntu
* crio upgrade does not work, see #6757

* update crio info in docs