chore(helm): update image docker.io/accetto/ubuntu-vnc-xfce-firefox-g3 digest to da19866 (#30994)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/accetto/ubuntu-vnc-xfce-firefox-g3 | digest | `ae0bca6` ->
`da19866` |

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

@@ -35,4 +35,4 @@ 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: 7.4.1
+version: 7.4.2

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:ae0bca61b3d9d3aff1379db24aa1d2935064ab16bd72d6d404c5f7f6ded49fb4
+  tag: latest@sha256:da1986694528afcc328505bbff6c0d3a2a21a4e6ef686d967960047bbdf198c3
 persistence:
   internalshare:
     enabled: true