feat: remove files from the write cache in purger #19502

Job	Run time
Check License Header	2m 10s
Check (windows-2022)	9m 27s
Check (ubuntu-20.04)	2m 16s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	2m 56s
Build GreptimeDB binaries (ubuntu-20.04)	2m 40s
Check typos and docs	10s
Clippy	3m 29s
Rustfmt	33s
Toml Check	24s
coverage	14m 42s
Sqlness Test (Basic)	2m 30s
Fuzz Test (fuzz_create_table)	6m 10s
Sqlness Test (Remote WAL)	2m 42s
Fuzz Test (fuzz_alter_table)	6m 12s
Fuzz Test (fuzz_create_database)	6m 6s
Fuzz Test (fuzz_create_logical_table)	7m 22s
Fuzz Test (fuzz_alter_logical_table)	6m 10s
Fuzz Test (fuzz_insert)	6m 10s
Fuzz Test (fuzz_insert_logical_table)	6m 30s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_migrate_mito_regions)	8m 59s
Fuzz Test (Distributed, Remote WAL, fuzz_create_table)	8m 54s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_mito_regions)	9m 9s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	4m 28s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_table)	8m 52s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_metric_regions)	10m 12s
Fuzz Test (Distributed, Remote WAL, fuzz_create_database)	9m 5s
Fuzz Test (Distributed, Remote WAL, fuzz_create_logical_table)	8m 52s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_logical_table)	9m 7s
Fuzz Test (Distributed, Remote WAL, fuzz_insert)	8m 31s
Fuzz Test (Distributed, Remote WAL, fuzz_insert_logical_table)	9m 6s
	3h 3m 54s

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