Fix CREATE SEQUENCE syntax rule

Author: nene

src/languages/postgresql/postgresql.formatter.ts

@@ -139,7 +139,7 @@ const tabularOnelineClauses = expandPhrases([
   'CREATE ROLE',
   'CREATE [OR REPLACE] RULE',
   'CREATE SCHEMA [AUTHORIZATION]',
-  'CREATE {TEMPORARY | TEMP | UNLOGGED} SEQUENCE',
+  'CREATE [TEMPORARY | TEMP | UNLOGGED] SEQUENCE',
   'CREATE SERVER',
   'CREATE STATISTICS',
   'CREATE SUBSCRIPTION',