Revert "fix(docker): bump supabase/postgres from 17.6.1.017 to 17.6.1.020 in …"

This reverts commit 29adfc4.

Author: sweatybridge

pkg/config/templates/Dockerfile

@@ -1,5 +1,5 @@
 # Exposed for updates by .github/dependabot.yml
-FROM supabase/postgres:17.6.1.020 AS pg
+FROM supabase/postgres:17.6.1.017 AS pg
 # Append to ServiceImages when adding new dependencies below
 FROM library/kong:2.8.1 AS kong
 FROM axllent/mailpit:v1.22.3 AS mailpit