sonarr: 4.0.19 -> 4.0.20 (proven on 9202, R-462)

Walked through the product's own guarded Update on scratch guest 9202 during the
twenty-eight drill, seeded and read back through the app's own front door.
Evidence: felhom.eu/documentation/audits/the-28-2026-09-22/apps/sonarr/verdict.json
catalog_since -> 2026-09-22 (R-452).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0159rPz1ZhFKsS53msqPYxtS

templates/sonarr/.felhom.yml

@@ -10,7 +10,7 @@ subdomain: "sonarr"
 slug: "sonarr"
 # catalog_since: the date THIS repo last changed this app's pinned images. Any commit that
 # changes an image: line must set this to the same day (see CLAUDE.md).
-catalog_since: "2026-07-18"
+catalog_since: "2026-09-22"
 
 # --- Resource hints (displayed on deploy screen) ---
 resources:

templates/sonarr/docker-compose.yml

@@ -14,7 +14,7 @@
 
 services:
   sonarr:
-    image: lscr.io/linuxserver/sonarr:4.0.19
+    image: lscr.io/linuxserver/sonarr:4.0.20
     container_name: sonarr
     restart: unless-stopped
     environment: