chore(deps): update n8nio/n8n docker tag to v2.8.3

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

library/compose/n8n/compose.yaml.j2

@@ -31,7 +31,7 @@ services:
 
   {% endif -%}
   {{ service_name }}:
-    image: n8nio/n8n:2.8.2
+    image: n8nio/n8n:2.8.3
     {% if not swarm_enabled -%}
     container_name: {{ container_name }}
     hostname: {{ container_hostname }}
@@ -185,7 +185,7 @@ services:
 {% if queue_enabled and queue_embedded_worker -%}
 
   {{ service_name }}-worker:
-    image: n8nio/n8n:2.8.2
+    image: n8nio/n8n:2.8.3
     command: worker
     {% if not swarm_enabled -%}
     container_name: {{ container_name }}-worker