chore(deps): update container image louislam/uptime-kuma to v1.23.15@d8b1b21 by renovate (#27073)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| louislam/uptime-kuma | patch | `1.23.14-debian` -> `1.23.15-debian` |

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charts/stable/uptime-kuma/Chart.yaml

@@ -6,7 +6,7 @@ annotations:
   truecharts.org/min_helm_version: "3.11"
   truecharts.org/train: stable
 apiVersion: v2
-appVersion: 1.23.14
+appVersion: 1.23.15
 dependencies:
   - name: common
     version: 24.1.16
@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/uptime-kuma
   - https://hub.docker.com/r/louislam/uptime-kuma
 type: application
-version: 12.1.7
+version: 12.1.8

charts/stable/uptime-kuma/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: louislam/uptime-kuma
   pullPolicy: IfNotPresent
-  tag: 1.23.14-debian@sha256:efbd17db3c29dcc9e0996b92f1710874f1343415b7b089acd9348ea3175bd595
+  tag: 1.23.15-debian@sha256:d8b1b2151256bda3a99e822902fcbeb27b3eca6ef6d93fad25d2062b9fb61ad2
 security:
   PUID: 0
 service: