Moving achiever template caching from Sentry warning to rails logger

Added sentry errror if achiever templates are not retrieved

Author: A-Wheeto

app/services/achiever/course/template.rb

@@ -107,8 +107,7 @@ def self.all
       ) do
         templates_to_cache = _all
 
-        # prompt a developer to check the caching context
-        Sentry.capture_message("Caching #{templates_to_cache.size} achiever template cache(s)", level: :error)
+        Rails.logger.info("Caching #{templates_to_cache.size} achiever template cache(s)")
 
         templates_to_cache
       end