chore(argo): upgrade to plex 1.42.1

Upgrade back to PMS 1.42.1.

Reverts: 4e56210.

Author: d3adb5

argo/app-of-apps/templates/media/plex-media-server.yaml

@@ -20,7 +20,7 @@ spec:
         image:
           registry: lscr.io
           repository: linuxserver/plex
-          tag: "1.41.8@sha256:e16ec1dda4e18fd3da3258c6c1d9b8265d7f62c36bbaa7c03d9255abe9a7686d"
+          tag: "1.42.1@sha256:06a0cde0379869ad62f443de1a708e3477100bfdd2b406206f7d3fc95295ef36"
           pullPolicy: IfNotPresent
         ingress:
           enabled: true