Fix issue #217: Wrap FuncCall arguments in parentheses when using :: cast syntax

- Fixes operator precedence issues with double casts like CAST(...AS text)::date
- Wraps FuncCall arguments (e.g., AT TIME ZONE expressions) in parentheses
- Prevents :: operator from binding to wrong operand
- Refactored empty if block to pass lint checks
- Updated pg-catalog snapshot to reflect correct parenthesization

Co-Authored-By: Dan Lynch <[email protected]>

Author: devin-ai-integration[bot]

packages/deparser/__tests__/misc/__snapshots__/pg-catalog.test.ts.snap

@@ -3,7 +3,7 @@
 exports[`should format pg_catalog.char with pretty option enabled 1`] = `
 "CREATE TABLE dashboard_jobs.jobs (
   id bigserial PRIMARY KEY,
-  queue_name text DEFAULT public.gen_random_uuid()::text,
+  queue_name text DEFAULT (public.gen_random_uuid())::text,
   task_identifier text NOT NULL,
   payload pg_catalog.json DEFAULT '{}'::json NOT NULL,
   priority int DEFAULT 0 NOT NULL,