chore: cut releases for 15.8 and 16.3 (#1279)

Co-authored-by: Sam Rose <samuel@supabase.io>

Author: samrose

ansible/vars.yml

@@ -11,8 +11,8 @@ postgres_major:
 
 # Full version strings for each major version
 postgres_release:
-  postgres15: "15.8.1.003-staging-5"
-  postgres16: "16.3.1.000-staging-5"
+  postgres15: "15.8.1.004"
+  postgres16: "16.3.1.010"
 
 # Non Postgres Extensions
 pgbouncer_release: "1.19.0"