chore(helm): update image ghcr.io/open-webui/open-webui digest to fff3d80 (#33087)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/open-webui/open-webui | digest | `74fc3c7` -> `fff3d80` |

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

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

@@ -35,4 +35,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/ollama
   - https://hub.docker.com/r/ollama/ollama
 type: application
-version: 7.11.14
+version: 7.11.15

charts/stable/ollama/values.yaml

@@ -9,7 +9,7 @@ rocmImage:
 uiImage:
   repository: ghcr.io/open-webui/open-webui
   pullPolicy: IfNotPresent
-  tag: latest@sha256:74fc3c741a5f3959c116dd5abc61e4b27d36d97dff83a247dbb4209ffde56372
+  tag: latest@sha256:fff3d8017355097556d7600aa84b46e28b221201ecda9f9191d2249a05b88fc3
 
 securityContext:
   container: