chore(deps): update container image ghcr.io/open-webui/open-webui to latest@b226299 by renovate (#26925)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/open-webui/open-webui | digest | `e0832ef` -> `b226299` |

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> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
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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: 7.3.47
+version: 7.3.48

charts/stable/ollama/values.yaml

@@ -9,7 +9,7 @@ rocmImage:
 uiImage:
   repository: ghcr.io/open-webui/open-webui
   pullPolicy: IfNotPresent
-  tag: latest@sha256:e0832efb44260a547c349da5774903b3991133959453460a4b9c185955160cea
+  tag: latest@sha256:b2262995f1dceed066324f4dbcca6f0971a197a66cfb5c55bfbe362242d4c1d2
 
 securityContext:
   container: