chore(deps): update container image nginx to 1.25.4@6db391d by renovate (#19277)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| nginx | digest | `c26ae74` -> `6db391d` |

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

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNDkuMyIsInVwZGF0ZWRJblZlciI6IjM3LjI0OS4zIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

charts/stable/vikunja/Chart.yaml

@@ -29,7 +29,7 @@ home: https://truecharts.org/charts/stable/vikunja
 icon: https://truecharts.org/img/hotlink-ok/chart-icons/vikunja.png
 keywords:
   - vikunja
-kubeVersion: ">=1.24.0-0"
+kubeVersion: '>=1.24.0-0'
 maintainers:
   - name: TrueCharts
     email: info@truecharts.org
@@ -42,4 +42,4 @@ sources:
   - https://hub.docker.com/r/vikunja/api
   - https://hub.docker.com/r/vikunja/frontend
 type: application
-version: 13.6.0
+version: 13.6.1

charts/stable/vikunja/values.yaml

@@ -8,7 +8,7 @@ frontendImage:
   pullPolicy: IfNotPresent
 nginxImage:
   repository: nginx
-  tag: 1.25.4@sha256:c26ae7472d624ba1fafd296e73cecc4f93f853088e6a9c13c0d52f6ca5865107
+  tag: 1.25.4@sha256:6db391d1c0cfb30588ba0bf72ea999404f2764febf0f1f196acd5867ac7efa7e
 workload:
   main:
     podSpec: