chore(deps): update helm release loki to v5.8.8 (#415)

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

k8s/base/monitoring/kustomization.yaml

@@ -15,7 +15,7 @@ helmCharts:
   - namespace: monitoring
     releaseName: log
     name: loki
-    version: 5.8.7
+    version: 5.8.8
     repo: https://grafana.github.io/helm-charts
     valuesFile: ./loki-values.yaml
   # Log Forwarder: promtail