chore(jellyfin)!: ♻️ Migrate the helm chart to newer standard level (#40)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

charts/jellyfin/templates/serviceaccount.yaml

@@ -0,0 +1,13 @@
+{{- if .Values.serviceAccount.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "jellyfin.serviceAccountName" . }}
+  labels:
+    {{- include "jellyfin.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}