chore(nextcloud): update image oci.trueforge.org/containerforge/nginx digest to d89f40f (#45120)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[oci.trueforge.org/containerforge/nginx](https://ghcr.io/trueforge-org/nginx)
([source](https://hub.docker.com/_/nginx)) | digest | `48cf436` →
`d89f40f` |

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charts/stable/nextcloud/Chart.yaml

@@ -58,5 +58,5 @@ sources:
   - https://hub.docker.com/r/clamav/clamav
   - https://hub.docker.com/r/collabora/code
 type: application
-version: 40.8.3
+version: 40.8.4
 

charts/stable/nextcloud/values.yaml

@@ -6,7 +6,7 @@ image:
 nginxImage:
   repository: oci.trueforge.org/containerforge/nginx
   pullPolicy: IfNotPresent
-  tag: "1.24.0@sha256:48cf43659d6b401c805c2b873d1027e5539fc91bba0dc746eee4e920db5eebb5"
+  tag: "1.24.0@sha256:d89f40fc6c2538d4f620b23fd466cee1b8eca99d441710203c262b0fb1edd410"
 imaginaryImage:
   repository: oci.trueforge.org/containerforge/nextcloud-imaginary
   pullPolicy: IfNotPresent