seerr: 2.3.0 -> 2.7.3

Campaign 7 catalog sweep.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nn3VgQk9iwEGgyx6QJ2NvE

templates/seerr/docker-compose.yml

@@ -8,7 +8,7 @@
 
 services:
   seerr:
-    image: fallenbagel/jellyseerr:2.3.0
+    image: fallenbagel/jellyseerr:2.7.3
     container_name: seerr
     restart: unless-stopped
     environment: