chore(plex): update image oci.trueforge.org/containerforge/plex digest to 255cafd (#45200)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[oci.trueforge.org/containerforge/plex](https://ghcr.io/trueforge-org/plex)
([source](https://redirect.github.com/plexinc/pms-docker)) | digest |
`3e5527c` → `255cafd` |

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charts/stable/plex/Chart.yaml

@@ -41,5 +41,5 @@ sources:
   - https://github.com/trueforge-org/containers/tree/main/apps/plex
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/plex
 type: application
-version: 21.4.1
+version: 21.4.2
 

charts/stable/plex/values.yaml

@@ -2,7 +2,7 @@
 image:
   repository: oci.trueforge.org/containerforge/plex
   pullPolicy: IfNotPresent
-  tag: 1.43.0.10492@sha256:3e5527c1316326ada76bada0efdd5099dfc13868fca527608a691b5152f63d7f
+  tag: 1.43.0.10492@sha256:255cafd8b2c11375f22bcf3d24df2a5ddb9e6872fda25c16978fea21d754f9d1
 service:
   main:
     ports: