chore: bump other AMI versions (#1350)

Author: pcnc

ansible/vars.yml

@@ -10,8 +10,8 @@ postgres_major:
 # Full version strings for each major version
 postgres_release:
   postgresorioledb-17: "orioledb-17.0.1.005"
-  postgres15: "15.8.1.014"
-  postgres16: "16.3.1.020"
+  postgres15: "15.8.1.015"
+  postgres16: "16.3.1.021"
 
 # Non Postgres Extensions
 pgbouncer_release: "1.19.0"