chore(deps): update container image bitnami/alertmanager to 0.27.0@fa86a65 by renovate (#21996)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [bitnami/alertmanager](https://togithub.com/bitnami/containers)
([source](https://togithub.com/bitnami/containers/tree/HEAD/bitnami/alertmanager))
| digest | `a0df963` -> `fa86a65` |

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This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

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charts/premium/prometheus/Chart.yaml

@@ -29,7 +29,7 @@ home: https://truecharts.org/charts/premium/prometheus
 icon: https://truecharts.org/img/hotlink-ok/chart-icons/prometheus.webp
 keywords:
   - metrics
-kubeVersion: ">=1.24.0-0"
+kubeVersion: '>=1.24.0-0'
 maintainers:
   - name: TrueCharts
     email: info@truecharts.org
@@ -39,8 +39,8 @@ sources:
   - https://github.com/prometheus-community/helm-charts
   - https://github.com/prometheus-operator/kube-prometheus
   - https://github.com/truecharts/charts/tree/master/charts/premium/prometheus
+  - https://hub.docker.com/r/bitnami/alertmanager
   - https://hub.docker.com/r/bitnami/prometheus
   - https://quay.io/thanos/thanos
-  - https://hub.docker.com/r/bitnami/alertmanager
 type: application
-version: 18.2.3
+version: 18.2.4