Rebase master to Jammy, migrate to s6v3

Dockerfile

@@ -1,4 +1,6 @@
-FROM ghcr.io/linuxserver/baseimage-ubuntu:focal
+# syntax=docker/dockerfile:1
+
+FROM ghcr.io/linuxserver/baseimage-ubuntu:jammy
 
 # set version label
 ARG BUILD_DATE
@@ -12,13 +14,9 @@ ARG DEBIAN_FRONTEND="noninteractive"
 ENV NVIDIA_DRIVER_CAPABILITIES="compute,video,utility"
 
 RUN \
-  echo "**** install packages ****" && \
-  apt-get update && \
-  apt-get install -y --no-install-recommends \
-    gnupg && \
   echo "**** install jellyfin *****" && \
   curl -s https://repo.jellyfin.org/ubuntu/jellyfin_team.gpg.key | apt-key add - && \
-  echo 'deb [arch=amd64] https://repo.jellyfin.org/ubuntu focal main' > /etc/apt/sources.list.d/jellyfin.list && \
+  echo 'deb [arch=amd64] https://repo.jellyfin.org/ubuntu jammy main' > /etc/apt/sources.list.d/jellyfin.list && \
   if [ -z ${JELLYFIN_RELEASE+x} ]; then \
     JELLYFIN="jellyfin-server"; \
   else \
@@ -32,7 +30,7 @@ RUN \
     jellyfin-web \
     libfontconfig1 \
     libfreetype6 \
-    libssl1.1 \
+    libssl3 \
     mesa-va-drivers && \
   echo "**** cleanup ****" && \
   rm -rf \