chore(helm): update image docker.io/nginxinc/nginx-unprivileged digest to 6d51e4a (#30935)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[docker.io/nginxinc/nginx-unprivileged](https://redirect.github.com/nginxinc/docker-nginx-unprivileged)
| digest | `09132b7` -> `6d51e4a` |

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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: 32.6.5
+version: 32.6.6

charts/premium/nextcloud/values.yaml

@@ -5,7 +5,7 @@ image:
 nginxImage:
   repository: docker.io/nginxinc/nginx-unprivileged
   pullPolicy: IfNotPresent
-  tag: 1.27.3@sha256:09132b78cfbfedfdd1d8b53ae3b018bfff10e3ad6595b2002dd6ed91faec4c48
+  tag: 1.27.3@sha256:6d51e4a8e10dfe334f8e2d15bb81b1ed2580ea9cb874b644acc720eda7022b54
 imaginaryImage:
   repository: tccr.io/tccr/nextcloud-imaginary
   pullPolicy: IfNotPresent