chore(deps): update postgres:16-alpine docker digest to 1c6d2f6 (#424)

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

Author: renovate[bot]

docker-compose.yml

@@ -22,7 +22,7 @@ services:
       - redis
 
   db:
-    image: postgres:16-alpine@sha256:af04f2185358fe933bb3f7fe2c42f0408b1bab4367c6d1b971bac3935636c21b
+    image: postgres:16-alpine@sha256:1c6d2f6e4d30d49c529e09a627e8178db5011dde88d955eb08db2e135e64aa09
     restart: unless-stopped
     volumes:
       - ./database:/var/lib/postgresql/data