Update Helm release loki to v5.43.0 (#123)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

manifests/_apps/logging.yaml

@@ -10,7 +10,7 @@ spec:
   source:
     chart: loki
     repoURL: https://grafana.github.io/helm-charts
-    targetRevision: 5.42.2
+    targetRevision: 5.43.0
     helm:
       values: |-
         loki: