Adjust initial postgrest setup migration

Author: bcb

postgres/migrations/00-init_postgrest.sql

@@ -1,10 +1,6 @@
 \set pgrst_jwt_secret '$PGRST_JWT_SECRET'
 \set pgrst_authenticator_pass '$PGRST_AUTHENTICATOR_PASS'
 
--- Set the JWT secret in the db - this is required by Postgrest. This is a
--- non-transactional statement, it cannot go inside the below transaction.
-alter system set pgrst.jwt_secret = :'pgrst_jwt_secret';
-
 begin;
 
 create role authenticator noinherit login password :'pgrst_authenticator_pass';
@@ -19,3 +15,9 @@ REST API interface, with endpoints documented via Swagger UI. This schema
 defines the public contract between the database and clients.';
 
 commit;
+
+-- Non-transactional statements
+
+-- Set the JWT secret in the db - this is required by Postgrest. This is a
+-- non-transactional statement, it cannot go inside the below transaction.
+alter system set pgrst.jwt_secret = :'pgrst_jwt_secret';