chore(deps): update container image nginxinc/nginx-unprivileged to 1.27.1@ad6b833 by renovate (#25290)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[nginxinc/nginx-unprivileged](https://togithub.com/nginxinc/docker-nginx-unprivileged)
| digest | `c04681a` -> `ad6b833` |

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charts/premium/nextcloud/values.yaml

@@ -5,7 +5,7 @@ image:
 nginxImage:
   repository: nginxinc/nginx-unprivileged
   pullPolicy: IfNotPresent
-  tag: 1.27.1@sha256:c04681a5cb8e33ea61d08a25cc3c186273b310ff1fff454ca0d9fa9b553fd7cf
+  tag: 1.27.1@sha256:ad6b833a16dc1d2e2234f70ec65c2fca7987db7d997c62dc13a10678c983a412
 imaginaryImage:
   repository: tccr.io/tccr/nextcloud-imaginary
   pullPolicy: IfNotPresent