chore(helm): update image docker.io/factoriotools/factorio digest to a84f812 (#30879)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/factoriotools/factorio | digest | `097133d` -> `a84f812` |

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charts/stable/factorio/Chart.yaml

@@ -33,4 +33,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/factorio
   - https://hub.docker.com/r/factoriotools/factorio
 type: application
-version: 9.4.1
+version: 9.4.2

charts/stable/factorio/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/factoriotools/factorio
-  tag: stable@sha256:097133d84e65eea22d29aafaf957939a84628e193f95931fd2308f2b0cda082e
+  tag: stable@sha256:a84f812e089245a2471172fd7a2d0bf7f7cf056c7dce38a2dfff16c8ad9a6cde
 
 securityContext:
   container: