chore(webp-server): update image docker.io/webpsh/webps digest to 54791e7 (#48771)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/webpsh/webps | digest | `0b935c0` → `54791e7` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/18710) for more information.

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

---

### Configuration

📅 **Schedule**: (UTC)

- Branch creation
  - At any time (no schedule defined)
- Automerge
  - At any time (no schedule defined)

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://redirect.github.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xMzAuMSIsInVwZGF0ZWRJblZlciI6IjQzLjEzMC4xIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImFwcC93ZWJwLXNlcnZlciIsImF1dG9tZXJnZSIsInJlbm92YXRlL2NvbnRhaW5lciIsInR5cGUvZGlnZXN0Il19-->

charts/stable/webp-server/Chart.yaml

@@ -41,5 +41,5 @@ sources:
   - https://github.com/webp-sh/webp_server_go
   - https://hub.docker.com/r/webpsh/webps
 type: application
-version: 9.3.0
+version: 9.3.1
 

charts/stable/webp-server/values.yaml

@@ -2,7 +2,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/webpsh/webps
-  tag: latest@sha256:0b935c0f4d65c4b9e89a738dfa54b83e8f5aa665767a0b6a3355aa384e27488d
+  tag: latest@sha256:54791e715d1ea54ee2d6219ee7ecd82202301276842c9e7f11edacc6470b2147
 persistence:
   storagecache:
     enabled: true