feat: update service versions - Authentik v2025.8.3 and GoToSocial latest

- Authentik: upgrade from v2025.6.4 to v2025.8.3 for latest security fixes and features
- GoToSocial: switch from pinned v0.19.1 to latest tag for ongoing updates

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

roles/docker/templates/authentik-compose.yml.j2

@@ -37,7 +37,7 @@ services:
       glance.parent: authentik
       glance.name: Redis
   server:
-    image: ${AUTHENTIK_IMAGE:-ghcr.io/goauthentik/server}:${AUTHENTIK_TAG:-2025.6.4}
+    image: ${AUTHENTIK_IMAGE:-ghcr.io/goauthentik/server}:${AUTHENTIK_TAG:-2025.8.3}
     restart: unless-stopped
     command: server
     environment:
@@ -64,7 +64,7 @@ services:
       glance.description: Authentication server
       glance.id: authentik
   worker:
-    image: ${AUTHENTIK_IMAGE:-ghcr.io/goauthentik/server}:${AUTHENTIK_TAG:-2025.6.4}
+    image: ${AUTHENTIK_IMAGE:-ghcr.io/goauthentik/server}:${AUTHENTIK_TAG:-2025.8.3}
     restart: unless-stopped
     command: worker
     environment:

roles/docker/templates/gotosocial-compose.yml.j2

@@ -1,6 +1,6 @@
 services:
   gotosocial:
-    image: docker.io/superseriousbusiness/gotosocial:0.19.1
+    image: docker.io/superseriousbusiness/gotosocial:latest
     container_name: gotosocial
     user: 1000:1000
     extra_hosts: