chore(helm): update image oci.trueforge.org/tccr/nextcloud-fpm digest to aac56eb (#39506)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[oci.trueforge.org/tccr/nextcloud-fpm](https://redirect.github.com/trueforge-org/truecharts)
| digest | `5de1cc2` -> `aac56eb` |

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charts/premium/nextcloud/Chart.yaml

@@ -50,5 +50,5 @@ sources:
   - https://hub.docker.com/r/collabora/code
   - https://hub.docker.com/r/nginxinc/nginx-unprivileged
 type: application
-version: 37.1.5
+version: 37.1.6
 

charts/premium/nextcloud/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: oci.trueforge.org/tccr/nextcloud-fpm
   pullPolicy: IfNotPresent
-  tag: v31.0.8@sha256:5de1cc2c1a09439b786ba40a39bc9c281b57f002d6621844b32accb131db521e
+  tag: v31.0.8@sha256:aac56eb58aeefa02a16af8dd032505192dece535241d205eb37862ded569c9a3
 nginxImage:
   repository: docker.io/nginxinc/nginx-unprivileged
   pullPolicy: IfNotPresent