message: fix(cache): only warn about fallback cache for non-debug mode
diff: @@ -41,7 +41,7 @@ class CacheManager:
  cache_config = app.config[cache_config_key]
  cache_type = cache_config.get("CACHE_TYPE")
  if required and cache_type in (None, "SupersetMetastoreCache"):
  - if cache_type is None:
  + if cache_type is None and not app.debug:
  logger.warning(
  "Falling back to the built-in cache, that stores data in the "
  "metadata database, for the followinng cache: `%s`. "
  