Bump pinned images to latest: authentik 2026.8.3, tautulli ls245, calibre-web ls402, plex 1.43.4

- authentik 2026.8.0 -> 2026.8.3 (server, worker, outpost quadlets)
- tautulli v2.18.1-ls242 -> v2.18.1-ls245
- calibre-web 0.6.27-ls397 -> 0.6.27-ls402
- plex 1.43.3.10896-ls322 -> 1.43.4.10903-ls325
- seerr already at v3.4.1 (latest, no bump)
- sync docs + the dead compose.yaml plex entry

anubis is already at the latest stable (v1.27.0); only pre-releases exist
beyond it, so no stable bump. Local-build images (caddy, alloy, loki,
comfyui, hermes) are refreshed by forced --no-cache rebuilds, not pins.

dankclaw/authentik/quadlet/authentik-outpost.container

@@ -20,7 +20,7 @@ Wants=authentik-server.service
 
 [Container]
 ContainerName=authentik-outpost
-Image=ghcr.io/goauthentik/server:2026.8.0
+Image=ghcr.io/goauthentik/server:2026.8.3
 Exec=worker
 Network=dankclaw_default
 EnvironmentFile=/home/dank/serverAppConfigs/dankclaw/.env

dankclaw/authentik/quadlet/authentik-server.container

@@ -19,7 +19,7 @@ Wants=authentik-postgres.service
 
 [Container]
 ContainerName=authentik-server
-Image=ghcr.io/goauthentik/server:2026.8.0
+Image=ghcr.io/goauthentik/server:2026.8.3
 Exec=server
 Network=dankclaw_default
 EnvironmentFile=/home/dank/serverAppConfigs/dankclaw/.env

dankclaw/authentik/quadlet/authentik-worker.container

@@ -16,7 +16,7 @@ Wants=authentik-server.service
 
 [Container]
 ContainerName=authentik-worker
-Image=ghcr.io/goauthentik/server:2026.8.0
+Image=ghcr.io/goauthentik/server:2026.8.3
 Exec=worker
 Network=dankclaw_default
 EnvironmentFile=/home/dank/serverAppConfigs/dankclaw/.env