improve logging

Signed-off-by: Zen <[email protected]>

Author: desultory

src/prometheus_exporter/cached_exporter.py

@@ -46,8 +46,7 @@ async def get_metrics(self, label_filter={}):
                     self._cached_metrics = new_metrics
                     self._cache_time = time()
             else:
-                self.logger.info("Returning cached metrics.")
-                self.logger.debug("Cached metrics: %s", self._cached_metrics)
+                self.logger.debug("Returning cached metrics: %s", self._cached_metrics)
                 self.metrics = self._cached_metrics
 
     CachedExporter.__name__ = f"Cached{cls.__name__}"