chore(deps): update container image mattermost/mattermost-enterprise-edition to release-9.6@461e045 by renovate (#19638)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| mattermost/mattermost-enterprise-edition | digest | `162b67d` ->
`461e045` |

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> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
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This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4yNjUuMCIsInVwZGF0ZWRJblZlciI6IjM3LjI2NS4wIiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIn0=-->

charts/stable/mattermost/Chart.yaml

@@ -36,4 +36,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/mattermost
   - https://hub.docker.com/r/mattermost/mattermost-enterprise-edition
 type: application
-version: 12.8.3
+version: 12.8.4

charts/stable/mattermost/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: mattermost/mattermost-enterprise-edition
-  tag: release-9.6@sha256:162b67dfda95b395f54804ec3f3db6ed5f22d6613e83786818256529f61fd243
+  tag: release-9.6@sha256:461e045b2603b7e6b25f96621519800c4ccc2d2b8649861100eaa6934991c3e4
   pullPolicy: IfNotPresent
 workload:
   main: