fix: issue #25, add conditional var to append '-1' to the step-ca pkg name for all releases > 0.28.0

Author: trfore

roles/step_ca/defaults/main.yml

@@ -1,6 +1,6 @@
 ---
 step_ca_checksum: "https://github.com/smallstep/certificates/releases/download/v{{ step_ca_version }}/checksums.txt"
-step_ca_pkg_src: "https://github.com/smallstep/certificates/releases/download/v{{ step_ca_version }}/step-ca_{{ step_ca_version }}_amd64.{{ __pkg_extension }}"
+step_ca_pkg_version: "{% if step_ca_version > '0.28.0' %}{{ step_ca_version }}-1{% else %}{{ step_ca_version }}{% endif %}"
 step_ca_version: "latest"
 
 # CA Initialize Values