chore(deps): update docker.io/grafana/alloy docker tag to v1.12.1 (#1603)

library/compose/alloy/compose.yaml.j2

@@ -1,6 +1,6 @@
 services:
   {{ service_name }}:
-    image: docker.io/grafana/alloy:v1.12.0
+    image: docker.io/grafana/alloy:v1.12.1
     restart: {{ restart_policy }}
     {% if container_hostname %}
     hostname: {{ container_hostname }}

library/compose/alloy/template.yaml

@@ -11,9 +11,9 @@ metadata:
     - **Project**: https://grafana.com/oss/alloy/
     - **Documentation**: https://grafana.com/docs/alloy/latest/
     - **GitHub**: https://github.com/grafana/alloy
-  version: v1.11.2
+  version: v1.12.1
   author: Christian Lempa
-  date: "2025-10-13"
+  date: '2025-12-15'
   tags:
     - traefik
   icon: