chore: update charm libraries (#269)

Co-authored-by: Github Actions <[email protected]>

lib/charms/observability_libs/v1/kubernetes_service_patch.py

@@ -146,7 +146,7 @@ def setUp(self, *unused):
 
 # Increment this PATCH version before using `charmcraft publish-lib` or reset
 # to 0 if you are raising the major API version
-LIBPATCH = 8
+LIBPATCH = 9
 
 ServiceType = Literal["ClusterIP", "LoadBalancer"]
 
@@ -314,7 +314,7 @@ def _is_patched(self, client: Client) -> bool:
             raise
 
         # Construct a list of expected ports, should the patch be applied
-        expected_ports = [(p.port, p.targetPort) for p in self.service.spec.ports]
+        expected_ports = [(p.port, p.targetPort) for p in self.service.spec.ports]  # type: ignore[attr-defined]
         # Construct a list in the same manner, using the fetched service
         fetched_ports = [
             (p.port, p.targetPort) for p in service.spec.ports  # type: ignore[attr-defined]