Use region code instead of name to deploy in non-default Vultr region. (#14713)

Author: matthewhall79

roles/cloud-vultr/tasks/prompts.yml

@@ -54,5 +54,5 @@
   set_fact:
     algo_vultr_region: >-
       {% if region is defined %}{{ region }}
-      {%- elif _algo_region.user_input %}{{ vultr_regions[_algo_region.user_input | int -1 ]['name'] | lower }}
+      {%- elif _algo_region.user_input %}{{ vultr_regions[_algo_region.user_input | int -1 ]['regioncode'] | lower }}
       {%- else %}{{ vultr_regions[default_region | int - 1]['regioncode'] | lower }}{% endif %}