fix: only consider pgsodium to be valid if they are in these versions

Author: dragarcia

migrations/db/migrations/20221207154255_create_pgsodium_and_vault.sql

@@ -9,6 +9,7 @@ BEGIN
     select count(*) = 1 
     from pg_available_extensions 
     where name = 'pgsodium'
+    and default_version in ('3.1.6', '3.1.7', '3.1.8')
   );
 
   vault_exists = (