chore: update charm libraries

lib/charms/loki_k8s/v1/loki_push_api.py

@@ -490,7 +490,7 @@ def _alert_rules_error(self, event):
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple, Union
 from urllib import request
-from urllib.error import HTTPError
+from urllib.error import URLError
 
 import yaml
 from cosl import JujuTopology
@@ -519,7 +519,7 @@ def _alert_rules_error(self, event):
 
 # Increment this PATCH version before using `charmcraft publish-lib` or reset
 # to 0 if you are raising the major API version
-LIBPATCH = 6
+LIBPATCH = 7
 
 logger = logging.getLogger(__name__)
 
@@ -2326,7 +2326,7 @@ def _ensure_promtail_binary(self, promtail_binaries: dict, container: Container)
 
         try:
             self._obtain_promtail(promtail_binaries[self._arch], container)
-        except HTTPError as e:
+        except URLError as e:
             msg = f"Promtail binary couldn't be downloaded - {str(e)}"
             logger.warning(msg)
             self.on.promtail_digest_error.emit(msg)