chore(deps): update postgres docker tag to v16

data/linux_amd64/docker-compose.yml

@@ -34,7 +34,7 @@ services:
       driver: "local"
 
   db:
-    image: postgres:13.8-alpine@sha256:fc3670fa23119159394dfdb98eee89b30ef5a506791aea6ff7d8a4e73a8cd4a4
+    image: postgres:16.2-alpine@sha256:49fd8c13fbd0eb92572df9884ca41882a036beac0f12e520274be85e7e7806e9
     environment:
       - POSTGRES_DB=owncloud
       - POSTGRES_PASSWORD=owncloud