CH-255 fix cloudharness-base accessed when not needed

Author: filippomc

tools/deployment-cli-tools/ch_cli_tools/codefresh.py

@@ -203,7 +203,9 @@ def codefresh_app_build_spec(app_name, full_image_name, app_context_path, docker
                 build['dependencies'] = dependencies
 
                 def get_other_image_name(app_name):
-                    full_image_name = helm_values.apps[app_name].image if app_name in helm_values.apps else helm_values[KEY_TASK_IMAGES][app_name]
+                    full_image_name = helm_values.apps[app_name].image if app_name in helm_values.apps \
+                        else helm_values[KEY_TASK_IMAGES][app_name] if app_name in helm_values[KEY_TASK_IMAGES] \
+                        else f"{base_name}/{app_name}"
                     return image_tag_with_variables(full_image_name, helm_values.registry.name, app_specific_tag_variable(app_name))
 
                 def add_arg_dependencies(dependencies):