chore(helm): update image docker.io/accetto/ubuntu-vnc-xfce-firefox-g3 digest to 4b790cb (#38794)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/accetto/ubuntu-vnc-xfce-firefox-g3 | digest | `ebd6c60` ->
`4b790cb` |

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charts/stable/firefox-desktop-g3/Chart.yaml

@@ -38,5 +38,4 @@ sources:
   - https://github.com/truecharts/charts/tree/master/charts/stable/firefox-desktop-g3
   - https://hub.docker.com/r/accetto/ubuntu-vnc-xfce-firefox-g3
 type: application
-version: 8.3.3
-
+version: 8.3.4

charts/stable/firefox-desktop-g3/values.yaml

@@ -1,7 +1,7 @@
 image:
   pullPolicy: IfNotPresent
   repository: docker.io/accetto/ubuntu-vnc-xfce-firefox-g3
-  tag: latest@sha256:ebd6c60b046bc8b6f7c6429581bc0bb7fb55a65dd72b1248216be8404dc291d1
+  tag: latest@sha256:4b790cb13fc472c160027b3b3009ce006d23c4564302ddf4c3f4243bf6ad735e
 persistence:
   internalshare:
     enabled: true