feat: change EXPIRE WHEN to EXPIRE AFTER #16656

Job	Run time
Build GreptimeDB binaries (ubuntu-20.04)	4m 22s
Check typos and docs	7s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	2m 25s
Check (windows-2022)	8m 18s
Check (ubuntu-20.04)	1m 40s
Check License Header	1m 18s
Clippy	3m 7s
Toml Check	23s
coverage	14m 15s
Rustfmt	24s
Fuzz Test (Distributed, Disk) (fuzz_create_table)	7m 14s
Fuzz Test (Distributed, Disk) (fuzz_alter_table)	6m 51s
Fuzz Test (Distributed, Disk) (fuzz_create_database)	6m 26s
Fuzz Test (Distributed, Disk) (fuzz_create_logical_table)	6m 42s
Fuzz Test (Distributed, Disk) (fuzz_alter_logical_table)	6m 48s
Fuzz Test (Distributed, Disk) (fuzz_insert)	7m 1s
Fuzz Test (Distributed, Disk) (fuzz_insert_logical_table)	7m 12s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	25m 28s
Fuzz Test (fuzz_create_table)	4m 50s
Sqlness Test (ubuntu-20.04)	2m 23s
Fuzz Test (fuzz_alter_table)	4m 58s
Sqlness Test with Kafka Wal (ubuntu-20.04)	4m 29s
Fuzz Test (fuzz_create_database)	4m 50s
Fuzz Test (fuzz_create_logical_table)	5m 14s
Fuzz Test (fuzz_alter_logical_table)	5m 20s
Fuzz Test (fuzz_insert)	4m 58s
Fuzz Test (fuzz_insert_logical_table)	5m 15s
	2h 32m 18s

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