chore(deps): update traefik docker tag to v3.6.9

Author: renovate[bot]

src/development/stack.yml

@@ -109,7 +109,7 @@ services:
       placement:
         constraints:
         - node.role == manager
-    image: traefik:v3.6.8@sha256:90099f8948c828ecf0ababd711a4359a2443eba12261c1df2f548a3b1d815938
+    image: traefik:v3.6.9@sha256:66a872e081b55d1d3641d898f4cd993f5db613095ca71350989ef6a14a188643
     ports:
     - mode: host
       protocol: tcp