fix(deps): update container image ghcr.io/linuxserver/piwigo to 13.8.0 (#15076)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[ghcr.io/linuxserver/piwigo](https://togithub.com/linuxserver/docker-piwigo)
| digest | `7087886` -> `3c4a4da` |

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charts/stable/piwigo/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v2
-appVersion: "13.8.0"
+appVersion: 13.8.0
 dependencies:
   - name: common
     repository: https://library-charts.truecharts.org
@@ -27,7 +27,7 @@ sources:
   - http://piwigo.org/
   - https://github.com/linuxserver/docker-piwigo
 type: application
-version: 7.0.17
+version: 7.0.18
 annotations:
   truecharts.org/category: media
   truecharts.org/SCALE-support: "true"

charts/stable/piwigo/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/linuxserver/piwigo
   pullPolicy: IfNotPresent
-  tag: 13.8.0@sha256:7087886dce4be1608907e3fb0c8b668225dc457efbabd4a82d26c39a9b9d2bf4
+  tag: 13.8.0@sha256:3c4a4daf0c04eb379ee67efd9fee5b55acbba36ba42743cfda3e36463264bba5
 securityContext:
   container:
     runAsNonRoot: false