v6.0.17

Changelog:

fde6354 cephadm: set ssh configs at bootstrap step
86ab9e4 shrink-osd: check osd id format
191ec4f cephadm: install cephadm from repository
7b19748 cephadm-adopt: configure repository for cephadm installation
f6c4101 ceph-validate: export validate repository vars as a task
7fd5bd4 ceph-common: export repository configuration to a single task