fix a typo in the variable name

tasks/read_openapi_file.yml

@@ -68,7 +68,7 @@
 
 - name: Compute the system_name prefix to prepend to the generated system_name
   set_fact:
-    threescale_cicd_api_system_name_prefix: '{{ (threescale_cicd_api_system_name is not defined and threescale_cicd_env is defined)|ternary((threescale_cicd_env|default("")|regex_replace(''[^a-zA-Z0-9_]+'', ''_'')) ~ "_", "") }}'
+    threescale_cicd_api_system_name_prefix: '{{ (threescale_cicd_api_system_name is not defined and threescale_cicd_api_environment_name is defined)|ternary((threescale_cicd_api_environment_name|default("")|regex_replace(''[^a-zA-Z0-9_]+'', ''_'')) ~ "_", "") }}'
 
 - name: Extract the wanted system_name from OpenAPI
   set_fact:
@@ -97,12 +97,12 @@
 - name: Append the full version to the API title
   set_fact:
     threescale_cicd_api_name: '{{ threescale_cicd_api_name }} (v{{ threescale_cicd_api_version }})'
-  when: 'threescale_cicd_env is not defined'
+  when: 'threescale_cicd_api_environment_name is not defined'
 
 - name: Append the full version and the environment to the API title
   set_fact:
-    threescale_cicd_api_name: '{{ threescale_cicd_api_name }} ({{ threescale_cicd_env|upper }}, v{{ threescale_cicd_api_version }})'
-  when: 'threescale_cicd_env is defined'
+    threescale_cicd_api_name: '{{ threescale_cicd_api_name }} ({{ threescale_cicd_api_environment_name|upper }}, v{{ threescale_cicd_api_version }})'
+  when: 'threescale_cicd_api_environment_name is defined'
 
 - name: Extract the security definitions and requirements from OpenAPI
   set_fact: