chore(deps): update container image nginxinc/nginx-unprivileged to 1.27.0@78e0a42 by renovate (#24776)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[nginxinc/nginx-unprivileged](https://togithub.com/nginxinc/docker-nginx-unprivileged)
| digest | `ec78375` -> `78e0a42` |

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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOC4xOC4xMiIsInVwZGF0ZWRJblZlciI6IjM4LjE4LjEyIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSIsInVwZGF0ZS9kb2NrZXIvZ2VuZXJhbC9ub24tbWFqb3IiXX0=-->

charts/premium/nextcloud/Chart.yaml

@@ -49,4 +49,4 @@ sources:
   - https://hub.docker.com/r/collabora/code
   - https://hub.docker.com/r/nginxinc/nginx-unprivileged
 type: application
-version: 31.4.2
+version: 31.4.3

charts/premium/nextcloud/values.yaml

@@ -5,7 +5,7 @@ image:
 nginxImage:
   repository: nginxinc/nginx-unprivileged
   pullPolicy: IfNotPresent
-  tag: 1.27.0@sha256:ec783757c240e99a713eba1def9a88b983a133da215f517ed2d9a6fd734c2ad1
+  tag: 1.27.0@sha256:78e0a42a309fd21299b3618fdcd20d1adddb43531a3a4483df858b867a58e546
 imaginaryImage:
   repository: tccr.io/tccr/nextcloud-imaginary
   pullPolicy: IfNotPresent