chore(deps): update traefik docker tag to v3.6.15

Author: renovate[bot]

src/development/stack.yml

@@ -100,7 +100,7 @@ services:
       placement:
         constraints:
         - node.role == manager
-    image: traefik:v3.6.14@sha256:4cda3393930dceff030e144b46260e96e1337c9cfaa4fed81c90cb8f4d498f57
+    image: traefik:v3.6.15@sha256:8cb20d16e01a53d8d7f7696ac2f1af7d200d5c9984d226ce2299731d9eab6d6c
     ports:
     - mode: host
       protocol: tcp