chore(helm): update image ghcr.io/dokuwiki/dokuwiki digest to 340faff (#37304)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/dokuwiki/dokuwiki | digest | `91ef258` -> `340faff` |

Add the preset `:preserveSemverRanges` to your config if you don't want
to pin your dependencies.

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### Configuration

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Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
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charts/stable/dokuwiki/Chart.yaml

@@ -34,5 +34,5 @@ sources:
   - https://ghcr.io/dokuwiki/dokuwiki
   - https://github.com/truecharts/charts/tree/master/charts/stable/dokuwiki
 type: application
-version: 15.0.7
+version: 15.0.8
 

charts/stable/dokuwiki/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: ghcr.io/dokuwiki/dokuwiki
   pullPolicy: IfNotPresent
-  tag: 2025-05-14a@sha256:91ef258eea66b513103f5ea893c3a49a7baae163ea4d0fd9948531b0cbe0dbf6
+  tag: 2025-05-14a@sha256:340faff08608e8eda0c8707e8437ceaa2ec630a6b69ba38d1541c965b4632b1b
 securityContext:
   container:
     runAsNonRoot: false