chore(deps): update valkey docker tag to v0.4.0 (#4572)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [valkey](https://github.com/valkey-io/valkey) | minor | `0.3.0` → `0.4.0` |

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### Configuration

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This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My41OS4yIiwidXBkYXRlZEluVmVyIjoiNDMuNTkuMiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiaW1hZ2UiXX0=-->

Reviewed-on: #4572
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/blocky/Chart.lock

@@ -4,6 +4,6 @@ dependencies:
   version: 4.6.2
 - name: valkey
   repository: oci://harbor.alexlebens.net/helm-charts
-  version: 0.3.0
-digest: sha256:e1300ab60ad8d986a42144940a64196aa282566e8049975a0981e4e6fc93e206
-generated: "2026-03-06T06:33:20.716599953Z"
+  version: 0.4.0
+digest: sha256:a5b0099261d772b24a302a106d106cfa82ac07fa14564141e00cf107d708e859
+generated: "2026-03-09T23:06:16.853255429Z"

clusters/cl01tl/helm/blocky/Chart.yaml

@@ -19,7 +19,7 @@ dependencies:
     version: 4.6.2
   - name: valkey
     alias: valkey
-    version: 0.3.0
+    version: 0.4.0
     repository: oci://harbor.alexlebens.net/helm-charts
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/blocky.png
 # renovate: datasource=github-releases depName=0xerr0r/blocky