refactor: unify the styling in `create_or_alter_tables_on_demand` (#4… #19999

Job	Run time
Check typos and docs	7s
Check License Header	2m 10s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	3m 24s
Build GreptimeDB binaries (ubuntu-20.04)	3m 13s
Check (windows-2022)	11m 10s
Clippy	3m 40s
coverage	15m 2s
Check (ubuntu-20.04)	2m 23s
Rustfmt	40s
Toml Check	32s
Sqlness Test (Basic)	2m 41s
Sqlness Test (Remote WAL)	3m 1s
Fuzz Test (fuzz_create_table)	4m 43s
Fuzz Test (fuzz_alter_table)	4m 42s
Fuzz Test (fuzz_create_database)	4m 38s
Fuzz Test (fuzz_create_logical_table)	4m 35s
Fuzz Test (fuzz_alter_logical_table)	5m 15s
Fuzz Test (fuzz_insert)	4m 36s
Fuzz Test (fuzz_insert_logical_table)	5m 9s
Fuzz Test (Distributed, Remote WAL, fuzz_create_table)	6m 48s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_table)	9m 2s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	6m 32s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_migrate_mito_regions)	7m 54s
Fuzz Test (Distributed, Remote WAL, fuzz_create_database)	7m 22s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_mito_regions)	7m 31s
Fuzz Test (Distributed, Remote WAL, fuzz_create_logical_table)	7m 2s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_metric_regions)	8m 12s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_logical_table)	7m 37s
Fuzz Test (Distributed, Remote WAL, fuzz_insert)	6m 53s
Fuzz Test (Distributed, Remote WAL, fuzz_insert_logical_table)	7m 37s
	2h 44m 11s

Provide feedback