chore(helm): update image ghcr.io/ich777/steamcmd digest to a4f89fc (#29959)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| ghcr.io/ich777/steamcmd | digest | `d6870ed` -> `a4f89fc` |

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charts/stable/left4dead/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/left4dead
   - https://www.steampowered.com/
 type: application
-version: 7.2.3
+version: 7.2.4

charts/stable/left4dead/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: ghcr.io/ich777/steamcmd
-  tag: l4d@sha256:d6870edfad70c47a68ce9b6e230f7a5304dbb52703da73d5aa7a02c47a98b39c
+  tag: l4d@sha256:a4f89fc9a013ce1673949650645cc8b584227725d5b5526270d24eede7d856fc
 persistence:
   serverfiles:
     enabled: true