chore(deps): update docker.io/grafana/loki docker tag to v3.6.2 (#1551)

* chore(deps): update docker.io/grafana/loki docker tag to v3.6.2

* chore: sync template versions with image updates

---------

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

library/compose/loki/compose.yaml.j2

@@ -1,7 +1,7 @@
 ---
 services:
   {{ service_name }}:
-    image: docker.io/grafana/loki:3.5.8
+    image: docker.io/grafana/loki:3.6.2
     restart: {{ restart_policy }}
     command: "-config.file=/etc/loki/config.yaml"
     {% if not traefik_enabled %}

library/compose/loki/template.yaml

@@ -12,9 +12,9 @@ metadata:
     * **Project:** https://grafana.com/oss/loki/
     * **Documentation:** https://grafana.com/docs/loki/latest/
     * **GitHub:** https://github.com/grafana/loki
-  version: 3.5.8
+  version: 3.6.2
   author: Christian Lempa
-  date: '2025-11-07'
+  date: '2025-12-11'
   tags:
     - traefik
     - authentik